Home / 991,960.23-1,368,817.56-550,445.88

Finding the Fourth Proportional to 991,960.23, 1,368,817.56 and 550,445.88

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Solution

The fourth proportional to 991,960.23, 1,368,817.56 and 550,445.88 is: 759,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,960.23 : 1,368,817.56 = 550,445.88 : x
  2. Step 2: Convert to fraction form
    991,960.23/1,368,817.56 = 550,445.88/x
  3. Step 3: Cross multiply
    991,960.23x = 1,368,817.56 × 550,445.88
  4. Step 4: Simplify right side
    991,960.23x = 753,459,986,373.65
  5. Step 5: Solve for x
    x = 753,459,986,373.65/991,960.23
  6. Step 6: Final answer
    x = 759,566.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.