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Finding the Fourth Proportional to 478,303.95, 660,063.92 and 263,444.79

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Solution

The fourth proportional to 478,303.95, 660,063.92 and 263,444.79 is: 363,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,303.95 : 660,063.92 = 263,444.79 : x
  2. Step 2: Convert to fraction form
    478,303.95/660,063.92 = 263,444.79/x
  3. Step 3: Cross multiply
    478,303.95x = 660,063.92 × 263,444.79
  4. Step 4: Simplify right side
    478,303.95x = 173,890,399,473.75
  5. Step 5: Solve for x
    x = 173,890,399,473.75/478,303.95
  6. Step 6: Final answer
    x = 363,556.27

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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.