Home / 912,750.40-1,366,501.20-558,456.40

Finding the Fourth Proportional to 912,750.40, 1,366,501.20 and 558,456.40

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Solution

The fourth proportional to 912,750.40, 1,366,501.20 and 558,456.40 is: 836,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,750.40 : 1,366,501.20 = 558,456.40 : x
  2. Step 2: Convert to fraction form
    912,750.40/1,366,501.20 = 558,456.40/x
  3. Step 3: Cross multiply
    912,750.40x = 1,366,501.20 × 558,456.40
  4. Step 4: Simplify right side
    912,750.40x = 763,131,340,747.68
  5. Step 5: Solve for x
    x = 763,131,340,747.68/912,750.40
  6. Step 6: Final answer
    x = 836,078.89

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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.