Home / 720,631.92-1,080,103.80-293,901.60

Finding the Fourth Proportional to 720,631.92, 1,080,103.80 and 293,901.60

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Solution

The fourth proportional to 720,631.92, 1,080,103.80 and 293,901.60 is: 440,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,631.92 : 1,080,103.80 = 293,901.60 : x
  2. Step 2: Convert to fraction form
    720,631.92/1,080,103.80 = 293,901.60/x
  3. Step 3: Cross multiply
    720,631.92x = 1,080,103.80 × 293,901.60
  4. Step 4: Simplify right side
    720,631.92x = 317,444,234,986.08
  5. Step 5: Solve for x
    x = 317,444,234,986.08/720,631.92
  6. Step 6: Final answer
    x = 440,508.15

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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.