Home / 853,742.62-1,280,567.76-433,007.56

Finding the Fourth Proportional to 853,742.62, 1,280,567.76 and 433,007.56

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Solution

The fourth proportional to 853,742.62, 1,280,567.76 and 433,007.56 is: 649,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,742.62 : 1,280,567.76 = 433,007.56 : x
  2. Step 2: Convert to fraction form
    853,742.62/1,280,567.76 = 433,007.56/x
  3. Step 3: Cross multiply
    853,742.62x = 1,280,567.76 × 433,007.56
  4. Step 4: Simplify right side
    853,742.62x = 554,495,521,172.27
  5. Step 5: Solve for x
    x = 554,495,521,172.27/853,742.62
  6. Step 6: Final answer
    x = 649,487.92

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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.