Home / 390,525.12-585,787.76-110,005.92

Finding the Fourth Proportional to 390,525.12, 585,787.76 and 110,005.92

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Solution

The fourth proportional to 390,525.12, 585,787.76 and 110,005.92 is: 165,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,525.12 : 585,787.76 = 110,005.92 : x
  2. Step 2: Convert to fraction form
    390,525.12/585,787.76 = 110,005.92/x
  3. Step 3: Cross multiply
    390,525.12x = 585,787.76 × 110,005.92
  4. Step 4: Simplify right side
    390,525.12x = 64,440,121,463.54
  5. Step 5: Solve for x
    x = 64,440,121,463.54/390,525.12
  6. Step 6: Final answer
    x = 165,008.90

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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.