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Finding the Fourth Proportional to 456,572.78, 630,089.00 and 252,620.38

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Solution

The fourth proportional to 456,572.78, 630,089.00 and 252,620.38 is: 348,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,572.78 : 630,089.00 = 252,620.38 : x
  2. Step 2: Convert to fraction form
    456,572.78/630,089.00 = 252,620.38/x
  3. Step 3: Cross multiply
    456,572.78x = 630,089.00 × 252,620.38
  4. Step 4: Simplify right side
    456,572.78x = 159,173,321,670.15
  5. Step 5: Solve for x
    x = 159,173,321,670.15/456,572.78
  6. Step 6: Final answer
    x = 348,626.40

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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.