Home / 905,159.76-1,248,981.60-523,112.76

Finding the Fourth Proportional to 905,159.76, 1,248,981.60 and 523,112.76

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Solution

The fourth proportional to 905,159.76, 1,248,981.60 and 523,112.76 is: 721,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,159.76 : 1,248,981.60 = 523,112.76 : x
  2. Step 2: Convert to fraction form
    905,159.76/1,248,981.60 = 523,112.76/x
  3. Step 3: Cross multiply
    905,159.76x = 1,248,981.60 × 523,112.76
  4. Step 4: Simplify right side
    905,159.76x = 653,358,211,965.22
  5. Step 5: Solve for x
    x = 653,358,211,965.22/905,159.76
  6. Step 6: Final answer
    x = 721,815.35

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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.