Home / 456,111.40-684,167.10-306,812.20

Finding the Fourth Proportional to 456,111.40, 684,167.10 and 306,812.20

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Solution

The fourth proportional to 456,111.40, 684,167.10 and 306,812.20 is: 460,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,111.40 : 684,167.10 = 306,812.20 : x
  2. Step 2: Convert to fraction form
    456,111.40/684,167.10 = 306,812.20/x
  3. Step 3: Cross multiply
    456,111.40x = 684,167.10 × 306,812.20
  4. Step 4: Simplify right side
    456,111.40x = 209,910,813,118.62
  5. Step 5: Solve for x
    x = 209,910,813,118.62/456,111.40
  6. Step 6: Final answer
    x = 460,218.30

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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.