Home / 827,440.80-1,240,869.60-294,979.20

Finding the Fourth Proportional to 827,440.80, 1,240,869.60 and 294,979.20

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Solution

The fourth proportional to 827,440.80, 1,240,869.60 and 294,979.20 is: 442,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,440.80 : 1,240,869.60 = 294,979.20 : x
  2. Step 2: Convert to fraction form
    827,440.80/1,240,869.60 = 294,979.20/x
  3. Step 3: Cross multiply
    827,440.80x = 1,240,869.60 × 294,979.20
  4. Step 4: Simplify right side
    827,440.80x = 366,030,721,912.32
  5. Step 5: Solve for x
    x = 366,030,721,912.32/827,440.80
  6. Step 6: Final answer
    x = 442,364.85

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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.