Home / 805,039.65-1,110,951.33-442,478.79

Finding the Fourth Proportional to 805,039.65, 1,110,951.33 and 442,478.79

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Solution

The fourth proportional to 805,039.65, 1,110,951.33 and 442,478.79 is: 610,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,039.65 : 1,110,951.33 = 442,478.79 : x
  2. Step 2: Convert to fraction form
    805,039.65/1,110,951.33 = 442,478.79/x
  3. Step 3: Cross multiply
    805,039.65x = 1,110,951.33 × 442,478.79
  4. Step 4: Simplify right side
    805,039.65x = 491,572,400,247.29
  5. Step 5: Solve for x
    x = 491,572,400,247.29/805,039.65
  6. Step 6: Final answer
    x = 610,618.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.