Home / 634,303.72-949,589.32-423,418.60

Finding the Fourth Proportional to 634,303.72, 949,589.32 and 423,418.60

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Solution

The fourth proportional to 634,303.72, 949,589.32 and 423,418.60 is: 633,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,303.72 : 949,589.32 = 423,418.60 : x
  2. Step 2: Convert to fraction form
    634,303.72/949,589.32 = 423,418.60/x
  3. Step 3: Cross multiply
    634,303.72x = 949,589.32 × 423,418.60
  4. Step 4: Simplify right side
    634,303.72x = 402,073,780,449.35
  5. Step 5: Solve for x
    x = 402,073,780,449.35/634,303.72
  6. Step 6: Final answer
    x = 633,882.11

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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.