Home / 456,815.23-630,397.39-252,861.78

Finding the Fourth Proportional to 456,815.23, 630,397.39 and 252,861.78

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Solution

The fourth proportional to 456,815.23, 630,397.39 and 252,861.78 is: 348,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,815.23 : 630,397.39 = 252,861.78 : x
  2. Step 2: Convert to fraction form
    456,815.23/630,397.39 = 252,861.78/x
  3. Step 3: Cross multiply
    456,815.23x = 630,397.39 × 252,861.78
  4. Step 4: Simplify right side
    456,815.23x = 159,403,406,142.75
  5. Step 5: Solve for x
    x = 159,403,406,142.75/456,815.23
  6. Step 6: Final answer
    x = 348,945.03

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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.