Home / 912,740.40-1,366,486.20-558,446.40

Finding the Fourth Proportional to 912,740.40, 1,366,486.20 and 558,446.40

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Solution

The fourth proportional to 912,740.40, 1,366,486.20 and 558,446.40 is: 836,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,740.40 : 1,366,486.20 = 558,446.40 : x
  2. Step 2: Convert to fraction form
    912,740.40/1,366,486.20 = 558,446.40/x
  3. Step 3: Cross multiply
    912,740.40x = 1,366,486.20 × 558,446.40
  4. Step 4: Simplify right side
    912,740.40x = 763,109,299,039.68
  5. Step 5: Solve for x
    x = 763,109,299,039.68/912,740.40
  6. Step 6: Final answer
    x = 836,063.90

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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.