Home / 702,022.40-1,053,033.60-418,587.20

Finding the Fourth Proportional to 702,022.40, 1,053,033.60 and 418,587.20

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Solution

The fourth proportional to 702,022.40, 1,053,033.60 and 418,587.20 is: 627,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,022.40 : 1,053,033.60 = 418,587.20 : x
  2. Step 2: Convert to fraction form
    702,022.40/1,053,033.60 = 418,587.20/x
  3. Step 3: Cross multiply
    702,022.40x = 1,053,033.60 × 418,587.20
  4. Step 4: Simplify right side
    702,022.40x = 440,786,386,129.92
  5. Step 5: Solve for x
    x = 440,786,386,129.92/702,022.40
  6. Step 6: Final answer
    x = 627,880.80

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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.