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Finding the Fourth Proportional to 579,557.40, 868,169.70 and 402,264.60

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Solution

The fourth proportional to 579,557.40, 868,169.70 and 402,264.60 is: 602,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,557.40 : 868,169.70 = 402,264.60 : x
  2. Step 2: Convert to fraction form
    579,557.40/868,169.70 = 402,264.60/x
  3. Step 3: Cross multiply
    579,557.40x = 868,169.70 × 402,264.60
  4. Step 4: Simplify right side
    579,557.40x = 349,233,937,102.62
  5. Step 5: Solve for x
    x = 349,233,937,102.62/579,557.40
  6. Step 6: Final answer
    x = 602,587.31

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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.