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Finding the Fourth Proportional to 654,254.40, 981,381.60 and 607,015.20

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Solution

The fourth proportional to 654,254.40, 981,381.60 and 607,015.20 is: 910,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,254.40 : 981,381.60 = 607,015.20 : x
  2. Step 2: Convert to fraction form
    654,254.40/981,381.60 = 607,015.20/x
  3. Step 3: Cross multiply
    654,254.40x = 981,381.60 × 607,015.20
  4. Step 4: Simplify right side
    654,254.40x = 595,713,548,200.32
  5. Step 5: Solve for x
    x = 595,713,548,200.32/654,254.40
  6. Step 6: Final answer
    x = 910,522.80

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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.