Home / 558,921.60-838,382.40-534,427.20

Finding the Fourth Proportional to 558,921.60, 838,382.40 and 534,427.20

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Solution

The fourth proportional to 558,921.60, 838,382.40 and 534,427.20 is: 801,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,921.60 : 838,382.40 = 534,427.20 : x
  2. Step 2: Convert to fraction form
    558,921.60/838,382.40 = 534,427.20/x
  3. Step 3: Cross multiply
    558,921.60x = 838,382.40 × 534,427.20
  4. Step 4: Simplify right side
    558,921.60x = 448,054,358,561.28
  5. Step 5: Solve for x
    x = 448,054,358,561.28/558,921.60
  6. Step 6: Final answer
    x = 801,640.80

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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.