Home / 687,414.20-1,030,875.26-238,014.45

Finding the Fourth Proportional to 687,414.20, 1,030,875.26 and 238,014.45

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Solution

The fourth proportional to 687,414.20, 1,030,875.26 and 238,014.45 is: 356,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,414.20 : 1,030,875.26 = 238,014.45 : x
  2. Step 2: Convert to fraction form
    687,414.20/1,030,875.26 = 238,014.45/x
  3. Step 3: Cross multiply
    687,414.20x = 1,030,875.26 × 238,014.45
  4. Step 4: Simplify right side
    687,414.20x = 245,363,206,837.44
  5. Step 5: Solve for x
    x = 245,363,206,837.44/687,414.20
  6. Step 6: Final answer
    x = 356,936.49

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Double scale
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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.