Home / 680,701.40-1,021,052.10-442,755.80

Finding the Fourth Proportional to 680,701.40, 1,021,052.10 and 442,755.80

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Solution

The fourth proportional to 680,701.40, 1,021,052.10 and 442,755.80 is: 664,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,701.40 : 1,021,052.10 = 442,755.80 : x
  2. Step 2: Convert to fraction form
    680,701.40/1,021,052.10 = 442,755.80/x
  3. Step 3: Cross multiply
    680,701.40x = 1,021,052.10 × 442,755.80
  4. Step 4: Simplify right side
    680,701.40x = 452,076,739,377.18
  5. Step 5: Solve for x
    x = 452,076,739,377.18/680,701.40
  6. Step 6: Final answer
    x = 664,133.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.