Home / 469,350.24-647,655.36-288,069.76

Finding the Fourth Proportional to 469,350.24, 647,655.36 and 288,069.76

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Solution

The fourth proportional to 469,350.24, 647,655.36 and 288,069.76 is: 397,506.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,350.24 : 647,655.36 = 288,069.76 : x
  2. Step 2: Convert to fraction form
    469,350.24/647,655.36 = 288,069.76/x
  3. Step 3: Cross multiply
    469,350.24x = 647,655.36 × 288,069.76
  4. Step 4: Simplify right side
    469,350.24x = 186,569,924,117.91
  5. Step 5: Solve for x
    x = 186,569,924,117.91/469,350.24
  6. Step 6: Final answer
    x = 397,506.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.