Home / 745,880.20-1,119,257.70-272,613.40

Finding the Fourth Proportional to 745,880.20, 1,119,257.70 and 272,613.40

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Solution

The fourth proportional to 745,880.20, 1,119,257.70 and 272,613.40 is: 409,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,880.20 : 1,119,257.70 = 272,613.40 : x
  2. Step 2: Convert to fraction form
    745,880.20/1,119,257.70 = 272,613.40/x
  3. Step 3: Cross multiply
    745,880.20x = 1,119,257.70 × 272,613.40
  4. Step 4: Simplify right side
    745,880.20x = 305,124,647,073.18
  5. Step 5: Solve for x
    x = 305,124,647,073.18/745,880.20
  6. Step 6: Final answer
    x = 409,079.97

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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.