Home / 807,000.30-1,210,500.45-492,072.30

Finding the Fourth Proportional to 807,000.30, 1,210,500.45 and 492,072.30

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Solution

The fourth proportional to 807,000.30, 1,210,500.45 and 492,072.30 is: 738,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,000.30 : 1,210,500.45 = 492,072.30 : x
  2. Step 2: Convert to fraction form
    807,000.30/1,210,500.45 = 492,072.30/x
  3. Step 3: Cross multiply
    807,000.30x = 1,210,500.45 × 492,072.30
  4. Step 4: Simplify right side
    807,000.30x = 595,653,740,582.54
  5. Step 5: Solve for x
    x = 595,653,740,582.54/807,000.30
  6. Step 6: Final answer
    x = 738,108.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.