Home / 869,199.52-1,199,484.56-487,225.76

Finding the Fourth Proportional to 869,199.52, 1,199,484.56 and 487,225.76

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Solution

The fourth proportional to 869,199.52, 1,199,484.56 and 487,225.76 is: 672,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,199.52 : 1,199,484.56 = 487,225.76 : x
  2. Step 2: Convert to fraction form
    869,199.52/1,199,484.56 = 487,225.76/x
  3. Step 3: Cross multiply
    869,199.52x = 1,199,484.56 × 487,225.76
  4. Step 4: Simplify right side
    869,199.52x = 584,419,776,354.27
  5. Step 5: Solve for x
    x = 584,419,776,354.27/869,199.52
  6. Step 6: Final answer
    x = 672,365.51

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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.