Home / 420,110.67-579,802.55-238,849.95

Finding the Fourth Proportional to 420,110.67, 579,802.55 and 238,849.95

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Solution

The fourth proportional to 420,110.67, 579,802.55 and 238,849.95 is: 329,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,110.67 : 579,802.55 = 238,849.95 : x
  2. Step 2: Convert to fraction form
    420,110.67/579,802.55 = 238,849.95/x
  3. Step 3: Cross multiply
    420,110.67x = 579,802.55 × 238,849.95
  4. Step 4: Simplify right side
    420,110.67x = 138,485,808,883.12
  5. Step 5: Solve for x
    x = 138,485,808,883.12/420,110.67
  6. Step 6: Final answer
    x = 329,641.26

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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.