Home / 753,627.60-1,039,984.38-431,326.74

Finding the Fourth Proportional to 753,627.60, 1,039,984.38 and 431,326.74

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Solution

The fourth proportional to 753,627.60, 1,039,984.38 and 431,326.74 is: 595,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,627.60 : 1,039,984.38 = 431,326.74 : x
  2. Step 2: Convert to fraction form
    753,627.60/1,039,984.38 = 431,326.74/x
  3. Step 3: Cross multiply
    753,627.60x = 1,039,984.38 × 431,326.74
  4. Step 4: Simplify right side
    753,627.60x = 448,573,072,276.32
  5. Step 5: Solve for x
    x = 448,573,072,276.32/753,627.60
  6. Step 6: Final answer
    x = 595,218.48

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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.