Home / 664,810.40-996,049.20-545,837.60

Finding the Fourth Proportional to 664,810.40, 996,049.20 and 545,837.60

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Solution

The fourth proportional to 664,810.40, 996,049.20 and 545,837.60 is: 817,798.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,810.40 : 996,049.20 = 545,837.60 : x
  2. Step 2: Convert to fraction form
    664,810.40/996,049.20 = 545,837.60/x
  3. Step 3: Cross multiply
    664,810.40x = 996,049.20 × 545,837.60
  4. Step 4: Simplify right side
    664,810.40x = 543,681,104,809.92
  5. Step 5: Solve for x
    x = 543,681,104,809.92/664,810.40
  6. Step 6: Final answer
    x = 817,798.74

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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.