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Finding the Fourth Proportional to 537,851.70, 805,027.95 and 418,878.90

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Solution

The fourth proportional to 537,851.70, 805,027.95 and 418,878.90 is: 626,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,851.70 : 805,027.95 = 418,878.90 : x
  2. Step 2: Convert to fraction form
    537,851.70/805,027.95 = 418,878.90/x
  3. Step 3: Cross multiply
    537,851.70x = 805,027.95 × 418,878.90
  4. Step 4: Simplify right side
    537,851.70x = 337,209,222,165.26
  5. Step 5: Solve for x
    x = 337,209,222,165.26/537,851.70
  6. Step 6: Final answer
    x = 626,955.76

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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.