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Finding the Fourth Proportional to 575,780.40, 864,059.40 and 323,060.40

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Solution

The fourth proportional to 575,780.40, 864,059.40 and 323,060.40 is: 484,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,780.40 : 864,059.40 = 323,060.40 : x
  2. Step 2: Convert to fraction form
    575,780.40/864,059.40 = 323,060.40/x
  3. Step 3: Cross multiply
    575,780.40x = 864,059.40 × 323,060.40
  4. Step 4: Simplify right side
    575,780.40x = 279,143,375,387.76
  5. Step 5: Solve for x
    x = 279,143,375,387.76/575,780.40
  6. Step 6: Final answer
    x = 484,808.75

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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.