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Finding the Fourth Proportional to 478,525.07, 660,394.08 and 263,665.08

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Solution

The fourth proportional to 478,525.07, 660,394.08 and 263,665.08 is: 363,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,525.07 : 660,394.08 = 263,665.08 : x
  2. Step 2: Convert to fraction form
    478,525.07/660,394.08 = 263,665.08/x
  3. Step 3: Cross multiply
    478,525.07x = 660,394.08 × 263,665.08
  4. Step 4: Simplify right side
    478,525.07x = 174,122,857,934.73
  5. Step 5: Solve for x
    x = 174,122,857,934.73/478,525.07
  6. Step 6: Final answer
    x = 363,874.05

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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.