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Finding the Fourth Proportional to 453,081.42, 625,347.50 and 287,402.22

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Solution

The fourth proportional to 453,081.42, 625,347.50 and 287,402.22 is: 396,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,081.42 : 625,347.50 = 287,402.22 : x
  2. Step 2: Convert to fraction form
    453,081.42/625,347.50 = 287,402.22/x
  3. Step 3: Cross multiply
    453,081.42x = 625,347.50 × 287,402.22
  4. Step 4: Simplify right side
    453,081.42x = 179,726,258,334.44
  5. Step 5: Solve for x
    x = 179,726,258,334.44/453,081.42
  6. Step 6: Final answer
    x = 396,675.41

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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.