Home / 820,148.30-1,230,222.45-746,665.10

Finding the Fourth Proportional to 820,148.30, 1,230,222.45 and 746,665.10

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Solution

The fourth proportional to 820,148.30, 1,230,222.45 and 746,665.10 is: 1,119,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,148.30 : 1,230,222.45 = 746,665.10 : x
  2. Step 2: Convert to fraction form
    820,148.30/1,230,222.45 = 746,665.10/x
  3. Step 3: Cross multiply
    820,148.30x = 1,230,222.45 × 746,665.10
  4. Step 4: Simplify right side
    820,148.30x = 918,564,168,651.50
  5. Step 5: Solve for x
    x = 918,564,168,651.50/820,148.30
  6. Step 6: Final answer
    x = 1,119,997.65

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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.