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Finding the Fourth Proportional to 478,595.26, 660,465.90 and 263,743

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Solution

The fourth proportional to 478,595.26, 660,465.90 and 263,743 is: 363,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,595.26 : 660,465.90 = 263,743 : x
  2. Step 2: Convert to fraction form
    478,595.26/660,465.90 = 263,743/x
  3. Step 3: Cross multiply
    478,595.26x = 660,465.90 × 263,743
  4. Step 4: Simplify right side
    478,595.26x = 174,193,257,863.70
  5. Step 5: Solve for x
    x = 174,193,257,863.70/478,595.26
  6. Step 6: Final answer
    x = 363,967.79

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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.