Home / 753,153.63-1,039,350.72-413,621.88

Finding the Fourth Proportional to 753,153.63, 1,039,350.72 and 413,621.88

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Solution

The fourth proportional to 753,153.63, 1,039,350.72 and 413,621.88 is: 570,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,153.63 : 1,039,350.72 = 413,621.88 : x
  2. Step 2: Convert to fraction form
    753,153.63/1,039,350.72 = 413,621.88/x
  3. Step 3: Cross multiply
    753,153.63x = 1,039,350.72 × 413,621.88
  4. Step 4: Simplify right side
    753,153.63x = 429,898,198,785.75
  5. Step 5: Solve for x
    x = 429,898,198,785.75/753,153.63
  6. Step 6: Final answer
    x = 570,797.49

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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.