Home / 1,127,010.72-1,690,620.30-407,532

Finding the Fourth Proportional to 1,127,010.72, 1,690,620.30 and 407,532

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Solution

The fourth proportional to 1,127,010.72, 1,690,620.30 and 407,532 is: 611,335.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,010.72 : 1,690,620.30 = 407,532 : x
  2. Step 2: Convert to fraction form
    1,127,010.72/1,690,620.30 = 407,532/x
  3. Step 3: Cross multiply
    1,127,010.72x = 1,690,620.30 × 407,532
  4. Step 4: Simplify right side
    1,127,010.72x = 688,981,872,099.60
  5. Step 5: Solve for x
    x = 688,981,872,099.60/1,127,010.72
  6. Step 6: Final answer
    x = 611,335.69

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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.