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Finding the Fourth Proportional to 478,759.92, 660,688.52 and 263,903.57

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Solution

The fourth proportional to 478,759.92, 660,688.52 and 263,903.57 is: 364,186.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,759.92 : 660,688.52 = 263,903.57 : x
  2. Step 2: Convert to fraction form
    478,759.92/660,688.52 = 263,903.57/x
  3. Step 3: Cross multiply
    478,759.92x = 660,688.52 × 263,903.57
  4. Step 4: Simplify right side
    478,759.92x = 174,358,059,167.32
  5. Step 5: Solve for x
    x = 174,358,059,167.32/478,759.92
  6. Step 6: Final answer
    x = 364,186.84

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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.