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Finding the Fourth Proportional to 417,995.55, 577,072.95 and 275,170.77

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Solution

The fourth proportional to 417,995.55, 577,072.95 and 275,170.77 is: 379,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,995.55 : 577,072.95 = 275,170.77 : x
  2. Step 2: Convert to fraction form
    417,995.55/577,072.95 = 275,170.77/x
  3. Step 3: Cross multiply
    417,995.55x = 577,072.95 × 275,170.77
  4. Step 4: Simplify right side
    417,995.55x = 158,793,607,997.67
  5. Step 5: Solve for x
    x = 158,793,607,997.67/417,995.55
  6. Step 6: Final answer
    x = 379,893.06

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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.