Home / 1,330,641.33-1,996,128.17-520,921.18

Finding the Fourth Proportional to 1,330,641.33, 1,996,128.17 and 520,921.18

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Solution

The fourth proportional to 1,330,641.33, 1,996,128.17 and 520,921.18 is: 781,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,641.33 : 1,996,128.17 = 520,921.18 : x
  2. Step 2: Convert to fraction form
    1,330,641.33/1,996,128.17 = 520,921.18/x
  3. Step 3: Cross multiply
    1,330,641.33x = 1,996,128.17 × 520,921.18
  4. Step 4: Simplify right side
    1,330,641.33x = 1,039,825,441,747.64
  5. Step 5: Solve for x
    x = 1,039,825,441,747.64/1,330,641.33
  6. Step 6: Final answer
    x = 781,446.82

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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.