Home / 687,306.44-1,030,622.36-282,425.30

Finding the Fourth Proportional to 687,306.44, 1,030,622.36 and 282,425.30

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Solution

The fourth proportional to 687,306.44, 1,030,622.36 and 282,425.30 is: 423,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,306.44 : 1,030,622.36 = 282,425.30 : x
  2. Step 2: Convert to fraction form
    687,306.44/1,030,622.36 = 282,425.30/x
  3. Step 3: Cross multiply
    687,306.44x = 1,030,622.36 × 282,425.30
  4. Step 4: Simplify right side
    687,306.44x = 291,073,829,209.71
  5. Step 5: Solve for x
    x = 291,073,829,209.71/687,306.44
  6. Step 6: Final answer
    x = 423,499.35

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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.