Home / 931,163.40-1,284,909.75-523,200.42

Finding the Fourth Proportional to 931,163.40, 1,284,909.75 and 523,200.42

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Solution

The fourth proportional to 931,163.40, 1,284,909.75 and 523,200.42 is: 721,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,163.40 : 1,284,909.75 = 523,200.42 : x
  2. Step 2: Convert to fraction form
    931,163.40/1,284,909.75 = 523,200.42/x
  3. Step 3: Cross multiply
    931,163.40x = 1,284,909.75 × 523,200.42
  4. Step 4: Simplify right side
    931,163.40x = 672,265,320,862.10
  5. Step 5: Solve for x
    x = 672,265,320,862.10/931,163.40
  6. Step 6: Final answer
    x = 721,962.78

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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.