Home / 912,404.88-1,368,519.36-281,149.20

Finding the Fourth Proportional to 912,404.88, 1,368,519.36 and 281,149.20

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Solution

The fourth proportional to 912,404.88, 1,368,519.36 and 281,149.20 is: 421,696.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,404.88 : 1,368,519.36 = 281,149.20 : x
  2. Step 2: Convert to fraction form
    912,404.88/1,368,519.36 = 281,149.20/x
  3. Step 3: Cross multiply
    912,404.88x = 1,368,519.36 × 281,149.20
  4. Step 4: Simplify right side
    912,404.88x = 384,758,123,248.51
  5. Step 5: Solve for x
    x = 384,758,123,248.51/912,404.88
  6. Step 6: Final answer
    x = 421,696.70

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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.