Home / 908,663.21-1,253,963.80-500,779.74

Finding the Fourth Proportional to 908,663.21, 1,253,963.80 and 500,779.74

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Solution

The fourth proportional to 908,663.21, 1,253,963.80 and 500,779.74 is: 691,080.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,663.21 : 1,253,963.80 = 500,779.74 : x
  2. Step 2: Convert to fraction form
    908,663.21/1,253,963.80 = 500,779.74/x
  3. Step 3: Cross multiply
    908,663.21x = 1,253,963.80 × 500,779.74
  4. Step 4: Simplify right side
    908,663.21x = 627,959,665,422.34
  5. Step 5: Solve for x
    x = 627,959,665,422.34/908,663.21
  6. Step 6: Final answer
    x = 691,080.76

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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.