Home / 1,071,129.80-1,478,159-612,254.18

Finding the Fourth Proportional to 1,071,129.80, 1,478,159 and 612,254.18

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Solution

The fourth proportional to 1,071,129.80, 1,478,159 and 612,254.18 is: 844,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,129.80 : 1,478,159 = 612,254.18 : x
  2. Step 2: Convert to fraction form
    1,071,129.80/1,478,159 = 612,254.18/x
  3. Step 3: Cross multiply
    1,071,129.80x = 1,478,159 × 612,254.18
  4. Step 4: Simplify right side
    1,071,129.80x = 905,009,026,454.62
  5. Step 5: Solve for x
    x = 905,009,026,454.62/1,071,129.80
  6. Step 6: Final answer
    x = 844,910.70

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Double scale
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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.