Home / 767,980.80-1,151,971.20-724,435.20

Finding the Fourth Proportional to 767,980.80, 1,151,971.20 and 724,435.20

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Solution

The fourth proportional to 767,980.80, 1,151,971.20 and 724,435.20 is: 1,086,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,980.80 : 1,151,971.20 = 724,435.20 : x
  2. Step 2: Convert to fraction form
    767,980.80/1,151,971.20 = 724,435.20/x
  3. Step 3: Cross multiply
    767,980.80x = 1,151,971.20 × 724,435.20
  4. Step 4: Simplify right side
    767,980.80x = 834,528,486,666.24
  5. Step 5: Solve for x
    x = 834,528,486,666.24/767,980.80
  6. Step 6: Final answer
    x = 1,086,652.80

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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.