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Finding the Fourth Proportional to 478,516.57, 717,777.57 and 123,506.32

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Solution

The fourth proportional to 478,516.57, 717,777.57 and 123,506.32 is: 185,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,516.57 : 717,777.57 = 123,506.32 : x
  2. Step 2: Convert to fraction form
    478,516.57/717,777.57 = 123,506.32/x
  3. Step 3: Cross multiply
    478,516.57x = 717,777.57 × 123,506.32
  4. Step 4: Simplify right side
    478,516.57x = 88,650,066,249.24
  5. Step 5: Solve for x
    x = 88,650,066,249.24/478,516.57
  6. Step 6: Final answer
    x = 185,260.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.