Home / 725,200.05-1,000,807.20-402,910.14

Finding the Fourth Proportional to 725,200.05, 1,000,807.20 and 402,910.14

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Solution

The fourth proportional to 725,200.05, 1,000,807.20 and 402,910.14 is: 556,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,200.05 : 1,000,807.20 = 402,910.14 : x
  2. Step 2: Convert to fraction form
    725,200.05/1,000,807.20 = 402,910.14/x
  3. Step 3: Cross multiply
    725,200.05x = 1,000,807.20 × 402,910.14
  4. Step 4: Simplify right side
    725,200.05x = 403,235,369,065.01
  5. Step 5: Solve for x
    x = 403,235,369,065.01/725,200.05
  6. Step 6: Final answer
    x = 556,033.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.