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Finding the Fourth Proportional to 457,347.40, 630,938.37 and 275,958.16

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Solution

The fourth proportional to 457,347.40, 630,938.37 and 275,958.16 is: 380,700.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,347.40 : 630,938.37 = 275,958.16 : x
  2. Step 2: Convert to fraction form
    457,347.40/630,938.37 = 275,958.16/x
  3. Step 3: Cross multiply
    457,347.40x = 630,938.37 × 275,958.16
  4. Step 4: Simplify right side
    457,347.40x = 174,112,591,658.60
  5. Step 5: Solve for x
    x = 174,112,591,658.60/457,347.40
  6. Step 6: Final answer
    x = 380,700.95

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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.