Home / 815,497.86-1,223,686.71-479,195.58

Finding the Fourth Proportional to 815,497.86, 1,223,686.71 and 479,195.58

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Solution

The fourth proportional to 815,497.86, 1,223,686.71 and 479,195.58 is: 719,051.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,497.86 : 1,223,686.71 = 479,195.58 : x
  2. Step 2: Convert to fraction form
    815,497.86/1,223,686.71 = 479,195.58/x
  3. Step 3: Cross multiply
    815,497.86x = 1,223,686.71 × 479,195.58
  4. Step 4: Simplify right side
    815,497.86x = 586,385,262,736.74
  5. Step 5: Solve for x
    x = 586,385,262,736.74/815,497.86
  6. Step 6: Final answer
    x = 719,051.87

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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.