Home / 917,560.91-1,266,372.02-660,289.52

Finding the Fourth Proportional to 917,560.91, 1,266,372.02 and 660,289.52

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Solution

The fourth proportional to 917,560.91, 1,266,372.02 and 660,289.52 is: 911,298.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,560.91 : 1,266,372.02 = 660,289.52 : x
  2. Step 2: Convert to fraction form
    917,560.91/1,266,372.02 = 660,289.52/x
  3. Step 3: Cross multiply
    917,560.91x = 1,266,372.02 × 660,289.52
  4. Step 4: Simplify right side
    917,560.91x = 836,172,178,043.88
  5. Step 5: Solve for x
    x = 836,172,178,043.88/917,560.91
  6. Step 6: Final answer
    x = 911,298.82

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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.