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Finding the Fourth Proportional to 478,275.74, 660,050.47 and 263,415.75

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Solution

The fourth proportional to 478,275.74, 660,050.47 and 263,415.75 is: 363,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,275.74 : 660,050.47 = 263,415.75 : x
  2. Step 2: Convert to fraction form
    478,275.74/660,050.47 = 263,415.75/x
  3. Step 3: Cross multiply
    478,275.74x = 660,050.47 × 263,415.75
  4. Step 4: Simplify right side
    478,275.74x = 173,867,687,446.98
  5. Step 5: Solve for x
    x = 173,867,687,446.98/478,275.74
  6. Step 6: Final answer
    x = 363,530.23

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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.