Home / 912,400.80-1,368,601.20-822,199.20

Finding the Fourth Proportional to 912,400.80, 1,368,601.20 and 822,199.20

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Solution

The fourth proportional to 912,400.80, 1,368,601.20 and 822,199.20 is: 1,233,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,400.80 : 1,368,601.20 = 822,199.20 : x
  2. Step 2: Convert to fraction form
    912,400.80/1,368,601.20 = 822,199.20/x
  3. Step 3: Cross multiply
    912,400.80x = 1,368,601.20 × 822,199.20
  4. Step 4: Simplify right side
    912,400.80x = 1,125,262,811,759.04
  5. Step 5: Solve for x
    x = 1,125,262,811,759.04/912,400.80
  6. Step 6: Final answer
    x = 1,233,298.80

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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.