Home / 527,178.24-727,477.20-312,338.16

Finding the Fourth Proportional to 527,178.24, 727,477.20 and 312,338.16

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Solution

The fourth proportional to 527,178.24, 727,477.20 and 312,338.16 is: 431,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,178.24 : 727,477.20 = 312,338.16 : x
  2. Step 2: Convert to fraction form
    527,178.24/727,477.20 = 312,338.16/x
  3. Step 3: Cross multiply
    527,178.24x = 727,477.20 × 312,338.16
  4. Step 4: Simplify right side
    527,178.24x = 227,218,890,089.95
  5. Step 5: Solve for x
    x = 227,218,890,089.95/527,178.24
  6. Step 6: Final answer
    x = 431,009.61

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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.