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Finding the Fourth Proportional to 626,834, 865,030.92 and 358,562

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Solution

The fourth proportional to 626,834, 865,030.92 and 358,562 is: 494,815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,834 : 865,030.92 = 358,562 : x
  2. Step 2: Convert to fraction form
    626,834/865,030.92 = 358,562/x
  3. Step 3: Cross multiply
    626,834x = 865,030.92 × 358,562
  4. Step 4: Simplify right side
    626,834x = 310,167,216,737.04
  5. Step 5: Solve for x
    x = 310,167,216,737.04/626,834
  6. Step 6: Final answer
    x = 494,815.56

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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.