Home / 842,390.38-1,262,299.78-500,159.88

Finding the Fourth Proportional to 842,390.38, 1,262,299.78 and 500,159.88

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Solution

The fourth proportional to 842,390.38, 1,262,299.78 and 500,159.88 is: 749,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,390.38 : 1,262,299.78 = 500,159.88 : x
  2. Step 2: Convert to fraction form
    842,390.38/1,262,299.78 = 500,159.88/x
  3. Step 3: Cross multiply
    842,390.38x = 1,262,299.78 × 500,159.88
  4. Step 4: Simplify right side
    842,390.38x = 631,351,706,488.83
  5. Step 5: Solve for x
    x = 631,351,706,488.83/842,390.38
  6. Step 6: Final answer
    x = 749,476.40

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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.