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Finding the Fourth Proportional to 558,937.60, 838,406.40 and 534,443.20

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Solution

The fourth proportional to 558,937.60, 838,406.40 and 534,443.20 is: 801,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,937.60 : 838,406.40 = 534,443.20 : x
  2. Step 2: Convert to fraction form
    558,937.60/838,406.40 = 534,443.20/x
  3. Step 3: Cross multiply
    558,937.60x = 838,406.40 × 534,443.20
  4. Step 4: Simplify right side
    558,937.60x = 448,080,599,316.48
  5. Step 5: Solve for x
    x = 448,080,599,316.48/558,937.60
  6. Step 6: Final answer
    x = 801,664.80

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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.