Home / 828,019.80-1,242,029.70-723,043.80

Finding the Fourth Proportional to 828,019.80, 1,242,029.70 and 723,043.80

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Solution

The fourth proportional to 828,019.80, 1,242,029.70 and 723,043.80 is: 1,084,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,019.80 : 1,242,029.70 = 723,043.80 : x
  2. Step 2: Convert to fraction form
    828,019.80/1,242,029.70 = 723,043.80/x
  3. Step 3: Cross multiply
    828,019.80x = 1,242,029.70 × 723,043.80
  4. Step 4: Simplify right side
    828,019.80x = 898,041,874,000.86
  5. Step 5: Solve for x
    x = 898,041,874,000.86/828,019.80
  6. Step 6: Final answer
    x = 1,084,565.70

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Similar ratio
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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.