Home / 753,339.20-1,039,904.32-451,474.88

Finding the Fourth Proportional to 753,339.20, 1,039,904.32 and 451,474.88

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Solution

The fourth proportional to 753,339.20, 1,039,904.32 and 451,474.88 is: 623,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,339.20 : 1,039,904.32 = 451,474.88 : x
  2. Step 2: Convert to fraction form
    753,339.20/1,039,904.32 = 451,474.88/x
  3. Step 3: Cross multiply
    753,339.20x = 1,039,904.32 × 451,474.88
  4. Step 4: Simplify right side
    753,339.20x = 469,490,678,083.48
  5. Step 5: Solve for x
    x = 469,490,678,083.48/753,339.20
  6. Step 6: Final answer
    x = 623,212.86

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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.