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Finding the Fourth Proportional to 537,801.70, 804,952.95 and 418,828.90

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Solution

The fourth proportional to 537,801.70, 804,952.95 and 418,828.90 is: 626,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,801.70 : 804,952.95 = 418,828.90 : x
  2. Step 2: Convert to fraction form
    537,801.70/804,952.95 = 418,828.90/x
  3. Step 3: Cross multiply
    537,801.70x = 804,952.95 × 418,828.90
  4. Step 4: Simplify right side
    537,801.70x = 337,137,558,600.26
  5. Step 5: Solve for x
    x = 337,137,558,600.26/537,801.70
  6. Step 6: Final answer
    x = 626,880.80

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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.