Home / 820,318.80-1,230,478.20-730,117.20

Finding the Fourth Proportional to 820,318.80, 1,230,478.20 and 730,117.20

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Solution

The fourth proportional to 820,318.80, 1,230,478.20 and 730,117.20 is: 1,095,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,318.80 : 1,230,478.20 = 730,117.20 : x
  2. Step 2: Convert to fraction form
    820,318.80/1,230,478.20 = 730,117.20/x
  3. Step 3: Cross multiply
    820,318.80x = 1,230,478.20 × 730,117.20
  4. Step 4: Simplify right side
    820,318.80x = 898,393,298,045.04
  5. Step 5: Solve for x
    x = 898,393,298,045.04/820,318.80
  6. Step 6: Final answer
    x = 1,095,175.80

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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.