Home / 678,954.33-1,018,432.86-252,583.65

Finding the Fourth Proportional to 678,954.33, 1,018,432.86 and 252,583.65

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Solution

The fourth proportional to 678,954.33, 1,018,432.86 and 252,583.65 is: 378,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,954.33 : 1,018,432.86 = 252,583.65 : x
  2. Step 2: Convert to fraction form
    678,954.33/1,018,432.86 = 252,583.65/x
  3. Step 3: Cross multiply
    678,954.33x = 1,018,432.86 × 252,583.65
  4. Step 4: Simplify right side
    678,954.33x = 257,239,489,058.74
  5. Step 5: Solve for x
    x = 257,239,489,058.74/678,954.33
  6. Step 6: Final answer
    x = 378,875.98

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.