Home / 820,324.80-1,230,487.20-730,123.20

Finding the Fourth Proportional to 820,324.80, 1,230,487.20 and 730,123.20

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Solution

The fourth proportional to 820,324.80, 1,230,487.20 and 730,123.20 is: 1,095,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,324.80 : 1,230,487.20 = 730,123.20 : x
  2. Step 2: Convert to fraction form
    820,324.80/1,230,487.20 = 730,123.20/x
  3. Step 3: Cross multiply
    820,324.80x = 1,230,487.20 × 730,123.20
  4. Step 4: Simplify right side
    820,324.80x = 898,407,252,023.04
  5. Step 5: Solve for x
    x = 898,407,252,023.04/820,324.80
  6. Step 6: Final answer
    x = 1,095,184.80

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1.5x scale

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.