Home / 891,804.40-1,336,887.60-386,046.88

Finding the Fourth Proportional to 891,804.40, 1,336,887.60 and 386,046.88

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Solution

The fourth proportional to 891,804.40, 1,336,887.60 and 386,046.88 is: 578,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,804.40 : 1,336,887.60 = 386,046.88 : x
  2. Step 2: Convert to fraction form
    891,804.40/1,336,887.60 = 386,046.88/x
  3. Step 3: Cross multiply
    891,804.40x = 1,336,887.60 × 386,046.88
  4. Step 4: Simplify right side
    891,804.40x = 516,101,286,890.69
  5. Step 5: Solve for x
    x = 516,101,286,890.69/891,804.40
  6. Step 6: Final answer
    x = 578,715.79

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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.