Home / 920,901.52-1,381,288.11-344,414.98

Finding the Fourth Proportional to 920,901.52, 1,381,288.11 and 344,414.98

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Solution

The fourth proportional to 920,901.52, 1,381,288.11 and 344,414.98 is: 516,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,901.52 : 1,381,288.11 = 344,414.98 : x
  2. Step 2: Convert to fraction form
    920,901.52/1,381,288.11 = 344,414.98/x
  3. Step 3: Cross multiply
    920,901.52x = 1,381,288.11 × 344,414.98
  4. Step 4: Simplify right side
    920,901.52x = 475,736,316,779.89
  5. Step 5: Solve for x
    x = 475,736,316,779.89/920,901.52
  6. Step 6: Final answer
    x = 516,598.47

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Double scale
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1.5x scale

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.