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Finding the Fourth Proportional to 648,126.15, 894,409.24 and 357,737.66

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Solution

The fourth proportional to 648,126.15, 894,409.24 and 357,737.66 is: 493,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,126.15 : 894,409.24 = 357,737.66 : x
  2. Step 2: Convert to fraction form
    648,126.15/894,409.24 = 357,737.66/x
  3. Step 3: Cross multiply
    648,126.15x = 894,409.24 × 357,737.66
  4. Step 4: Simplify right side
    648,126.15x = 319,963,868,599.98
  5. Step 5: Solve for x
    x = 319,963,868,599.98/648,126.15
  6. Step 6: Final answer
    x = 493,675.30

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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.