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Finding the Fourth Proportional to 555,124.71, 831,425.89 and 434,429.47

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Solution

The fourth proportional to 555,124.71, 831,425.89 and 434,429.47 is: 650,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,124.71 : 831,425.89 = 434,429.47 : x
  2. Step 2: Convert to fraction form
    555,124.71/831,425.89 = 434,429.47/x
  3. Step 3: Cross multiply
    555,124.71x = 831,425.89 × 434,429.47
  4. Step 4: Simplify right side
    555,124.71x = 361,195,908,690.19
  5. Step 5: Solve for x
    x = 361,195,908,690.19/555,124.71
  6. Step 6: Final answer
    x = 650,657.24

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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.