Home / 992,979.40-1,487,938.20-739,068.70

Finding the Fourth Proportional to 992,979.40, 1,487,938.20 and 739,068.70

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Solution

The fourth proportional to 992,979.40, 1,487,938.20 and 739,068.70 is: 1,107,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,979.40 : 1,487,938.20 = 739,068.70 : x
  2. Step 2: Convert to fraction form
    992,979.40/1,487,938.20 = 739,068.70/x
  3. Step 3: Cross multiply
    992,979.40x = 1,487,938.20 × 739,068.70
  4. Step 4: Simplify right side
    992,979.40x = 1,099,688,551,154.34
  5. Step 5: Solve for x
    x = 1,099,688,551,154.34/992,979.40
  6. Step 6: Final answer
    x = 1,107,463.61

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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.