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Finding the Fourth Proportional to 579,577.90, 868,200.45 and 402,285.10

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Solution

The fourth proportional to 579,577.90, 868,200.45 and 402,285.10 is: 602,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,577.90 : 868,200.45 = 402,285.10 : x
  2. Step 2: Convert to fraction form
    579,577.90/868,200.45 = 402,285.10/x
  3. Step 3: Cross multiply
    579,577.90x = 868,200.45 × 402,285.10
  4. Step 4: Simplify right side
    579,577.90x = 349,264,104,848.30
  5. Step 5: Solve for x
    x = 349,264,104,848.30/579,577.90
  6. Step 6: Final answer
    x = 602,618.05

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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.