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Finding the Fourth Proportional to 602,178.21, 831,042.68 and 347,545.77

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Solution

The fourth proportional to 602,178.21, 831,042.68 and 347,545.77 is: 479,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,178.21 : 831,042.68 = 347,545.77 : x
  2. Step 2: Convert to fraction form
    602,178.21/831,042.68 = 347,545.77/x
  3. Step 3: Cross multiply
    602,178.21x = 831,042.68 × 347,545.77
  4. Step 4: Simplify right side
    602,178.21x = 288,825,366,385.74
  5. Step 5: Solve for x
    x = 288,825,366,385.74/602,178.21
  6. Step 6: Final answer
    x = 479,634.37

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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.