Home / 917,636.06-1,266,373.31-509,768.87

Finding the Fourth Proportional to 917,636.06, 1,266,373.31 and 509,768.87

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Solution

The fourth proportional to 917,636.06, 1,266,373.31 and 509,768.87 is: 703,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,636.06 : 1,266,373.31 = 509,768.87 : x
  2. Step 2: Convert to fraction form
    917,636.06/1,266,373.31 = 509,768.87/x
  3. Step 3: Cross multiply
    917,636.06x = 1,266,373.31 × 509,768.87
  4. Step 4: Simplify right side
    917,636.06x = 645,557,691,236.86
  5. Step 5: Solve for x
    x = 645,557,691,236.86/917,636.06
  6. Step 6: Final answer
    x = 703,500.79

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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.