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Finding the Fourth Proportional to 660,165.48, 911,050.02 and 373,679.46

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Solution

The fourth proportional to 660,165.48, 911,050.02 and 373,679.46 is: 515,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,165.48 : 911,050.02 = 373,679.46 : x
  2. Step 2: Convert to fraction form
    660,165.48/911,050.02 = 373,679.46/x
  3. Step 3: Cross multiply
    660,165.48x = 911,050.02 × 373,679.46
  4. Step 4: Simplify right side
    660,165.48x = 340,440,679,506.59
  5. Step 5: Solve for x
    x = 340,440,679,506.59/660,165.48
  6. Step 6: Final answer
    x = 515,689.91

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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.