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Finding the Fourth Proportional to 719,376.80, 992,130.54 and 432,843.44

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Solution

The fourth proportional to 719,376.80, 992,130.54 and 432,843.44 is: 596,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,376.80 : 992,130.54 = 432,843.44 : x
  2. Step 2: Convert to fraction form
    719,376.80/992,130.54 = 432,843.44/x
  3. Step 3: Cross multiply
    719,376.80x = 992,130.54 × 432,843.44
  4. Step 4: Simplify right side
    719,376.80x = 429,437,195,862.66
  5. Step 5: Solve for x
    x = 429,437,195,862.66/719,376.80
  6. Step 6: Final answer
    x = 596,957.25

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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.