Home / 585,320.08-807,876.61-381,015.10

Finding the Fourth Proportional to 585,320.08, 807,876.61 and 381,015.10

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Solution

The fourth proportional to 585,320.08, 807,876.61 and 381,015.10 is: 525,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,320.08 : 807,876.61 = 381,015.10 : x
  2. Step 2: Convert to fraction form
    585,320.08/807,876.61 = 381,015.10/x
  3. Step 3: Cross multiply
    585,320.08x = 807,876.61 × 381,015.10
  4. Step 4: Simplify right side
    585,320.08x = 307,813,186,279.66
  5. Step 5: Solve for x
    x = 307,813,186,279.66/585,320.08
  6. Step 6: Final answer
    x = 525,888.65

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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.