Home / 801,437.80-1,105,984.14-438,883.82

Finding the Fourth Proportional to 801,437.80, 1,105,984.14 and 438,883.82

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Solution

The fourth proportional to 801,437.80, 1,105,984.14 and 438,883.82 is: 605,659.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,437.80 : 1,105,984.14 = 438,883.82 : x
  2. Step 2: Convert to fraction form
    801,437.80/1,105,984.14 = 438,883.82/x
  3. Step 3: Cross multiply
    801,437.80x = 1,105,984.14 × 438,883.82
  4. Step 4: Simplify right side
    801,437.80x = 485,398,545,341.76
  5. Step 5: Solve for x
    x = 485,398,545,341.76/801,437.80
  6. Step 6: Final answer
    x = 605,659.66

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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.