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Finding the Fourth Proportional to 456,576.35, 630,328.76 and 275,334.20

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Solution

The fourth proportional to 456,576.35, 630,328.76 and 275,334.20 is: 380,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,576.35 : 630,328.76 = 275,334.20 : x
  2. Step 2: Convert to fraction form
    456,576.35/630,328.76 = 275,334.20/x
  3. Step 3: Cross multiply
    456,576.35x = 630,328.76 × 275,334.20
  4. Step 4: Simplify right side
    456,576.35x = 173,551,061,375.78
  5. Step 5: Solve for x
    x = 173,551,061,375.78/456,576.35
  6. Step 6: Final answer
    x = 380,114.00

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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.