Home / 915,352.12-1,372,691.22-316,159.48

Finding the Fourth Proportional to 915,352.12, 1,372,691.22 and 316,159.48

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Solution

The fourth proportional to 915,352.12, 1,372,691.22 and 316,159.48 is: 474,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,352.12 : 1,372,691.22 = 316,159.48 : x
  2. Step 2: Convert to fraction form
    915,352.12/1,372,691.22 = 316,159.48/x
  3. Step 3: Cross multiply
    915,352.12x = 1,372,691.22 × 316,159.48
  4. Step 4: Simplify right side
    915,352.12x = 433,989,342,315.77
  5. Step 5: Solve for x
    x = 433,989,342,315.77/915,352.12
  6. Step 6: Final answer
    x = 474,122.84

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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.