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Finding the Fourth Proportional to 478,759.83, 660,718.13 and 263,899.41

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Solution

The fourth proportional to 478,759.83, 660,718.13 and 263,899.41 is: 364,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,759.83 : 660,718.13 = 263,899.41 : x
  2. Step 2: Convert to fraction form
    478,759.83/660,718.13 = 263,899.41/x
  3. Step 3: Cross multiply
    478,759.83x = 660,718.13 × 263,899.41
  4. Step 4: Simplify right side
    478,759.83x = 174,363,123,363.81
  5. Step 5: Solve for x
    x = 174,363,123,363.81/478,759.83
  6. Step 6: Final answer
    x = 364,197.48

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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.