Home / 479,445.16-719,488.52-198,962.40

Finding the Fourth Proportional to 479,445.16, 719,488.52 and 198,962.40

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Solution

The fourth proportional to 479,445.16, 719,488.52 and 198,962.40 is: 298,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,445.16 : 719,488.52 = 198,962.40 : x
  2. Step 2: Convert to fraction form
    479,445.16/719,488.52 = 198,962.40/x
  3. Step 3: Cross multiply
    479,445.16x = 719,488.52 × 198,962.40
  4. Step 4: Simplify right side
    479,445.16x = 143,151,162,711.65
  5. Step 5: Solve for x
    x = 143,151,162,711.65/479,445.16
  6. Step 6: Final answer
    x = 298,576.72

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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.