Home / 912,981.40-1,366,847.70-558,687.40

Finding the Fourth Proportional to 912,981.40, 1,366,847.70 and 558,687.40

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Solution

The fourth proportional to 912,981.40, 1,366,847.70 and 558,687.40 is: 836,425.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,981.40 : 1,366,847.70 = 558,687.40 : x
  2. Step 2: Convert to fraction form
    912,981.40/1,366,847.70 = 558,687.40/x
  3. Step 3: Cross multiply
    912,981.40x = 1,366,847.70 × 558,687.40
  4. Step 4: Simplify right side
    912,981.40x = 763,640,587,708.98
  5. Step 5: Solve for x
    x = 763,640,587,708.98/912,981.40
  6. Step 6: Final answer
    x = 836,425.13

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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.