Home / 456,890.76-630,517.62-255,686.28

Finding the Fourth Proportional to 456,890.76, 630,517.62 and 255,686.28

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Solution

The fourth proportional to 456,890.76, 630,517.62 and 255,686.28 is: 352,851.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,890.76 : 630,517.62 = 255,686.28 : x
  2. Step 2: Convert to fraction form
    456,890.76/630,517.62 = 255,686.28/x
  3. Step 3: Cross multiply
    456,890.76x = 630,517.62 × 255,686.28
  4. Step 4: Simplify right side
    456,890.76x = 161,214,704,732.25
  5. Step 5: Solve for x
    x = 161,214,704,732.25/456,890.76
  6. Step 6: Final answer
    x = 352,851.75

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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.