Home / 991,411.52-1,368,156.24-538,702.56

Finding the Fourth Proportional to 991,411.52, 1,368,156.24 and 538,702.56

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Solution

The fourth proportional to 991,411.52, 1,368,156.24 and 538,702.56 is: 743,414.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,411.52 : 1,368,156.24 = 538,702.56 : x
  2. Step 2: Convert to fraction form
    991,411.52/1,368,156.24 = 538,702.56/x
  3. Step 3: Cross multiply
    991,411.52x = 1,368,156.24 × 538,702.56
  4. Step 4: Simplify right side
    991,411.52x = 737,029,268,967.98
  5. Step 5: Solve for x
    x = 737,029,268,967.98/991,411.52
  6. Step 6: Final answer
    x = 743,414.07

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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.