Home / 457,059.16-630,666.66-287,173

Finding the Fourth Proportional to 457,059.16, 630,666.66 and 287,173

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Solution

The fourth proportional to 457,059.16, 630,666.66 and 287,173 is: 396,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,059.16 : 630,666.66 = 287,173 : x
  2. Step 2: Convert to fraction form
    457,059.16/630,666.66 = 287,173/x
  3. Step 3: Cross multiply
    457,059.16x = 630,666.66 × 287,173
  4. Step 4: Simplify right side
    457,059.16x = 181,110,436,752.18
  5. Step 5: Solve for x
    x = 181,110,436,752.18/457,059.16
  6. Step 6: Final answer
    x = 396,251.63

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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.