Home / 791,146.46-1,091,784.80-428,569.20

Finding the Fourth Proportional to 791,146.46, 1,091,784.80 and 428,569.20

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Solution

The fourth proportional to 791,146.46, 1,091,784.80 and 428,569.20 is: 591,426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,146.46 : 1,091,784.80 = 428,569.20 : x
  2. Step 2: Convert to fraction form
    791,146.46/1,091,784.80 = 428,569.20/x
  3. Step 3: Cross multiply
    791,146.46x = 1,091,784.80 × 428,569.20
  4. Step 4: Simplify right side
    791,146.46x = 467,905,339,379.58
  5. Step 5: Solve for x
    x = 467,905,339,379.58/791,146.46
  6. Step 6: Final answer
    x = 591,426.95

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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.