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Finding the Fourth Proportional to 543,600.40, 749,634.60 and 500,689.84

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Solution

The fourth proportional to 543,600.40, 749,634.60 and 500,689.84 is: 690,460.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,600.40 : 749,634.60 = 500,689.84 : x
  2. Step 2: Convert to fraction form
    543,600.40/749,634.60 = 500,689.84/x
  3. Step 3: Cross multiply
    543,600.40x = 749,634.60 × 500,689.84
  4. Step 4: Simplify right side
    543,600.40x = 375,334,427,932.46
  5. Step 5: Solve for x
    x = 375,334,427,932.46/543,600.40
  6. Step 6: Final answer
    x = 690,460.18

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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.