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Finding the Fourth Proportional to 541,364.20, 747,279.51 and 315,009.70

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Solution

The fourth proportional to 541,364.20, 747,279.51 and 315,009.70 is: 434,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,364.20 : 747,279.51 = 315,009.70 : x
  2. Step 2: Convert to fraction form
    541,364.20/747,279.51 = 315,009.70/x
  3. Step 3: Cross multiply
    541,364.20x = 747,279.51 × 315,009.70
  4. Step 4: Simplify right side
    541,364.20x = 235,400,294,261.25
  5. Step 5: Solve for x
    x = 235,400,294,261.25/541,364.20
  6. Step 6: Final answer
    x = 434,827.97

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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.