Home / 775,589.65-1,070,378.38-431,490.41

Finding the Fourth Proportional to 775,589.65, 1,070,378.38 and 431,490.41

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Solution

The fourth proportional to 775,589.65, 1,070,378.38 and 431,490.41 is: 595,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,589.65 : 1,070,378.38 = 431,490.41 : x
  2. Step 2: Convert to fraction form
    775,589.65/1,070,378.38 = 431,490.41/x
  3. Step 3: Cross multiply
    775,589.65x = 1,070,378.38 × 431,490.41
  4. Step 4: Simplify right side
    775,589.65x = 461,858,005,242.73
  5. Step 5: Solve for x
    x = 461,858,005,242.73/775,589.65
  6. Step 6: Final answer
    x = 595,492.74

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Double scale
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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.