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Finding the Fourth Proportional to 573,354.10, 791,159.90 and 315,188.47

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Solution

The fourth proportional to 573,354.10, 791,159.90 and 315,188.47 is: 434,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,354.10 : 791,159.90 = 315,188.47 : x
  2. Step 2: Convert to fraction form
    573,354.10/791,159.90 = 315,188.47/x
  3. Step 3: Cross multiply
    573,354.10x = 791,159.90 × 315,188.47
  4. Step 4: Simplify right side
    573,354.10x = 249,364,478,406.35
  5. Step 5: Solve for x
    x = 249,364,478,406.35/573,354.10
  6. Step 6: Final answer
    x = 434,922.29

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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.