Home / 876,412.20-1,313,711.10-476,207.40

Finding the Fourth Proportional to 876,412.20, 1,313,711.10 and 476,207.40

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Solution

The fourth proportional to 876,412.20, 1,313,711.10 and 476,207.40 is: 713,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,412.20 : 1,313,711.10 = 476,207.40 : x
  2. Step 2: Convert to fraction form
    876,412.20/1,313,711.10 = 476,207.40/x
  3. Step 3: Cross multiply
    876,412.20x = 1,313,711.10 × 476,207.40
  4. Step 4: Simplify right side
    876,412.20x = 625,598,947,282.14
  5. Step 5: Solve for x
    x = 625,598,947,282.14/876,412.20
  6. Step 6: Final answer
    x = 713,818.16

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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.