Home / 977,473.30-1,465,772.55-378,235.30

Finding the Fourth Proportional to 977,473.30, 1,465,772.55 and 378,235.30

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Solution

The fourth proportional to 977,473.30, 1,465,772.55 and 378,235.30 is: 567,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,473.30 : 1,465,772.55 = 378,235.30 : x
  2. Step 2: Convert to fraction form
    977,473.30/1,465,772.55 = 378,235.30/x
  3. Step 3: Cross multiply
    977,473.30x = 1,465,772.55 × 378,235.30
  4. Step 4: Simplify right side
    977,473.30x = 554,406,920,181.02
  5. Step 5: Solve for x
    x = 554,406,920,181.02/977,473.30
  6. Step 6: Final answer
    x = 567,183.70

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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.