Home / 820,215.40-1,229,171.10-652,023.40

Finding the Fourth Proportional to 820,215.40, 1,229,171.10 and 652,023.40

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Solution

The fourth proportional to 820,215.40, 1,229,171.10 and 652,023.40 is: 977,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,215.40 : 1,229,171.10 = 652,023.40 : x
  2. Step 2: Convert to fraction form
    820,215.40/1,229,171.10 = 652,023.40/x
  3. Step 3: Cross multiply
    820,215.40x = 1,229,171.10 × 652,023.40
  4. Step 4: Simplify right side
    820,215.40x = 801,448,319,803.74
  5. Step 5: Solve for x
    x = 801,448,319,803.74/820,215.40
  6. Step 6: Final answer
    x = 977,119.33

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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.