Home / 747,747.40-1,121,621.10-481,808.20

Finding the Fourth Proportional to 747,747.40, 1,121,621.10 and 481,808.20

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Solution

The fourth proportional to 747,747.40, 1,121,621.10 and 481,808.20 is: 722,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,747.40 : 1,121,621.10 = 481,808.20 : x
  2. Step 2: Convert to fraction form
    747,747.40/1,121,621.10 = 481,808.20/x
  3. Step 3: Cross multiply
    747,747.40x = 1,121,621.10 × 481,808.20
  4. Step 4: Simplify right side
    747,747.40x = 540,406,243,273.02
  5. Step 5: Solve for x
    x = 540,406,243,273.02/747,747.40
  6. Step 6: Final answer
    x = 722,712.30

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Double scale
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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.