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Finding the Fourth Proportional to 775,476.72, 1,070,126.64 and 435,937.68

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Solution

The fourth proportional to 775,476.72, 1,070,126.64 and 435,937.68 is: 601,576.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,476.72 : 1,070,126.64 = 435,937.68 : x
  2. Step 2: Convert to fraction form
    775,476.72/1,070,126.64 = 435,937.68/x
  3. Step 3: Cross multiply
    775,476.72x = 1,070,126.64 × 435,937.68
  4. Step 4: Simplify right side
    775,476.72x = 466,508,524,747.80
  5. Step 5: Solve for x
    x = 466,508,524,747.80/775,476.72
  6. Step 6: Final answer
    x = 601,576.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.