Home / 985,892.80-1,479,422.40-718,981.60

Finding the Fourth Proportional to 985,892.80, 1,479,422.40 and 718,981.60

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Solution

The fourth proportional to 985,892.80, 1,479,422.40 and 718,981.60 is: 1,078,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,892.80 : 1,479,422.40 = 718,981.60 : x
  2. Step 2: Convert to fraction form
    985,892.80/1,479,422.40 = 718,981.60/x
  3. Step 3: Cross multiply
    985,892.80x = 1,479,422.40 × 718,981.60
  4. Step 4: Simplify right side
    985,892.80x = 1,063,677,484,227.84
  5. Step 5: Solve for x
    x = 1,063,677,484,227.84/985,892.80
  6. Step 6: Final answer
    x = 1,078,897.71

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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.