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Finding the Fourth Proportional to 417,993.63, 577,070.32 and 275,168.87

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Solution

The fourth proportional to 417,993.63, 577,070.32 and 275,168.87 is: 379,890.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,993.63 : 577,070.32 = 275,168.87 : x
  2. Step 2: Convert to fraction form
    417,993.63/577,070.32 = 275,168.87/x
  3. Step 3: Cross multiply
    417,993.63x = 577,070.32 × 275,168.87
  4. Step 4: Simplify right side
    417,993.63x = 158,791,784,291.67
  5. Step 5: Solve for x
    x = 158,791,784,291.67/417,993.63
  6. Step 6: Final answer
    x = 379,890.44

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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.