Home / 801,283.18-1,105,726.99-438,636.89

Finding the Fourth Proportional to 801,283.18, 1,105,726.99 and 438,636.89

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Solution

The fourth proportional to 801,283.18, 1,105,726.99 and 438,636.89 is: 605,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,283.18 : 1,105,726.99 = 438,636.89 : x
  2. Step 2: Convert to fraction form
    801,283.18/1,105,726.99 = 438,636.89/x
  3. Step 3: Cross multiply
    801,283.18x = 1,105,726.99 × 438,636.89
  4. Step 4: Simplify right side
    801,283.18x = 485,012,648,082.66
  5. Step 5: Solve for x
    x = 485,012,648,082.66/801,283.18
  6. Step 6: Final answer
    x = 605,294.93

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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.