Home / 684,665.40-1,026,998.10-446,719.80

Finding the Fourth Proportional to 684,665.40, 1,026,998.10 and 446,719.80

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Solution

The fourth proportional to 684,665.40, 1,026,998.10 and 446,719.80 is: 670,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,665.40 : 1,026,998.10 = 446,719.80 : x
  2. Step 2: Convert to fraction form
    684,665.40/1,026,998.10 = 446,719.80/x
  3. Step 3: Cross multiply
    684,665.40x = 1,026,998.10 × 446,719.80
  4. Step 4: Simplify right side
    684,665.40x = 458,780,385,832.38
  5. Step 5: Solve for x
    x = 458,780,385,832.38/684,665.40
  6. Step 6: Final answer
    x = 670,079.70

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Double scale
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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.