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Finding the Fourth Proportional to 478,535.57, 659,935.38 and 349,269.43

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Solution

The fourth proportional to 478,535.57, 659,935.38 and 349,269.43 is: 481,667.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,535.57 : 659,935.38 = 349,269.43 : x
  2. Step 2: Convert to fraction form
    478,535.57/659,935.38 = 349,269.43/x
  3. Step 3: Cross multiply
    478,535.57x = 659,935.38 × 349,269.43
  4. Step 4: Simplify right side
    478,535.57x = 230,495,254,009.43
  5. Step 5: Solve for x
    x = 230,495,254,009.43/478,535.57
  6. Step 6: Final answer
    x = 481,667.96

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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.