Home / 480,964.32-721,439.16-165,423.96

Finding the Fourth Proportional to 480,964.32, 721,439.16 and 165,423.96

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Solution

The fourth proportional to 480,964.32, 721,439.16 and 165,423.96 is: 248,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,964.32 : 721,439.16 = 165,423.96 : x
  2. Step 2: Convert to fraction form
    480,964.32/721,439.16 = 165,423.96/x
  3. Step 3: Cross multiply
    480,964.32x = 721,439.16 × 165,423.96
  4. Step 4: Simplify right side
    480,964.32x = 119,343,322,746.27
  5. Step 5: Solve for x
    x = 119,343,322,746.27/480,964.32
  6. Step 6: Final answer
    x = 248,133.42

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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.