Home / 853,276.63-1,280,614.55-432,672.79

Finding the Fourth Proportional to 853,276.63, 1,280,614.55 and 432,672.79

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Solution

The fourth proportional to 853,276.63, 1,280,614.55 and 432,672.79 is: 649,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,276.63 : 1,280,614.55 = 432,672.79 : x
  2. Step 2: Convert to fraction form
    853,276.63/1,280,614.55 = 432,672.79/x
  3. Step 3: Cross multiply
    853,276.63x = 1,280,614.55 × 432,672.79
  4. Step 4: Simplify right side
    853,276.63x = 554,087,070,263.10
  5. Step 5: Solve for x
    x = 554,087,070,263.10/853,276.63
  6. Step 6: Final answer
    x = 649,363.94

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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.