Home / 790,951.16-1,091,507.18-428,366.76

Finding the Fourth Proportional to 790,951.16, 1,091,507.18 and 428,366.76

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Solution

The fourth proportional to 790,951.16, 1,091,507.18 and 428,366.76 is: 591,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,951.16 : 1,091,507.18 = 428,366.76 : x
  2. Step 2: Convert to fraction form
    790,951.16/1,091,507.18 = 428,366.76/x
  3. Step 3: Cross multiply
    790,951.16x = 1,091,507.18 × 428,366.76
  4. Step 4: Simplify right side
    790,951.16x = 467,565,394,213.34
  5. Step 5: Solve for x
    x = 467,565,394,213.34/790,951.16
  6. Step 6: Final answer
    x = 591,143.19

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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.