Home / 768,020.40-1,152,030.60-724,474.80

Finding the Fourth Proportional to 768,020.40, 1,152,030.60 and 724,474.80

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Solution

The fourth proportional to 768,020.40, 1,152,030.60 and 724,474.80 is: 1,086,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,020.40 : 1,152,030.60 = 724,474.80 : x
  2. Step 2: Convert to fraction form
    768,020.40/1,152,030.60 = 724,474.80/x
  3. Step 3: Cross multiply
    768,020.40x = 1,152,030.60 × 724,474.80
  4. Step 4: Simplify right side
    768,020.40x = 834,617,138,528.88
  5. Step 5: Solve for x
    x = 834,617,138,528.88/768,020.40
  6. Step 6: Final answer
    x = 1,086,712.20

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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.