Home / 790,949.91-1,091,510.53-428,373.77

Finding the Fourth Proportional to 790,949.91, 1,091,510.53 and 428,373.77

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Solution

The fourth proportional to 790,949.91, 1,091,510.53 and 428,373.77 is: 591,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,949.91 : 1,091,510.53 = 428,373.77 : x
  2. Step 2: Convert to fraction form
    790,949.91/1,091,510.53 = 428,373.77/x
  3. Step 3: Cross multiply
    790,949.91x = 1,091,510.53 × 428,373.77
  4. Step 4: Simplify right side
    790,949.91x = 467,574,475,273.25
  5. Step 5: Solve for x
    x = 467,574,475,273.25/790,949.91
  6. Step 6: Final answer
    x = 591,155.61

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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.