Home / 478,298.38-660,081.70-263,438.36

Finding the Fourth Proportional to 478,298.38, 660,081.70 and 263,438.36

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Solution

The fourth proportional to 478,298.38, 660,081.70 and 263,438.36 is: 363,561.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,298.38 : 660,081.70 = 263,438.36 : x
  2. Step 2: Convert to fraction form
    478,298.38/660,081.70 = 263,438.36/x
  3. Step 3: Cross multiply
    478,298.38x = 660,081.70 × 263,438.36
  4. Step 4: Simplify right side
    478,298.38x = 173,890,840,514.01
  5. Step 5: Solve for x
    x = 173,890,840,514.01/478,298.38
  6. Step 6: Final answer
    x = 363,561.42

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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.