Home / 1,070,781.19-1,605,999.45-312,444.61

Finding the Fourth Proportional to 1,070,781.19, 1,605,999.45 and 312,444.61

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Solution

The fourth proportional to 1,070,781.19, 1,605,999.45 and 312,444.61 is: 468,616.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,781.19 : 1,605,999.45 = 312,444.61 : x
  2. Step 2: Convert to fraction form
    1,070,781.19/1,605,999.45 = 312,444.61/x
  3. Step 3: Cross multiply
    1,070,781.19x = 1,605,999.45 × 312,444.61
  4. Step 4: Simplify right side
    1,070,781.19x = 501,785,868,972.13
  5. Step 5: Solve for x
    x = 501,785,868,972.13/1,070,781.19
  6. Step 6: Final answer
    x = 468,616.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.