Home / 753,266.52-1,129,899.78-280,071

Finding the Fourth Proportional to 753,266.52, 1,129,899.78 and 280,071

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Solution

The fourth proportional to 753,266.52, 1,129,899.78 and 280,071 is: 420,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,266.52 : 1,129,899.78 = 280,071 : x
  2. Step 2: Convert to fraction form
    753,266.52/1,129,899.78 = 280,071/x
  3. Step 3: Cross multiply
    753,266.52x = 1,129,899.78 × 280,071
  4. Step 4: Simplify right side
    753,266.52x = 316,452,161,284.38
  5. Step 5: Solve for x
    x = 316,452,161,284.38/753,266.52
  6. Step 6: Final answer
    x = 420,106.50

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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.