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Finding the Fourth Proportional to 713,306.08, 1,070,123.01 and 239,978.80

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Solution

The fourth proportional to 713,306.08, 1,070,123.01 and 239,978.80 is: 360,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,306.08 : 1,070,123.01 = 239,978.80 : x
  2. Step 2: Convert to fraction form
    713,306.08/1,070,123.01 = 239,978.80/x
  3. Step 3: Cross multiply
    713,306.08x = 1,070,123.01 × 239,978.80
  4. Step 4: Simplify right side
    713,306.08x = 256,806,835,792.19
  5. Step 5: Solve for x
    x = 256,806,835,792.19/713,306.08
  6. Step 6: Final answer
    x = 360,023.34

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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.