Home / 782,615.40-1,175,348.70-684,637.80

Finding the Fourth Proportional to 782,615.40, 1,175,348.70 and 684,637.80

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Solution

The fourth proportional to 782,615.40, 1,175,348.70 and 684,637.80 is: 1,028,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,615.40 : 1,175,348.70 = 684,637.80 : x
  2. Step 2: Convert to fraction form
    782,615.40/1,175,348.70 = 684,637.80/x
  3. Step 3: Cross multiply
    782,615.40x = 1,175,348.70 × 684,637.80
  4. Step 4: Simplify right side
    782,615.40x = 804,688,148,200.86
  5. Step 5: Solve for x
    x = 804,688,148,200.86/782,615.40
  6. Step 6: Final answer
    x = 1,028,203.83

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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.