Home / 684,725.40-1,027,088.10-446,779.80

Finding the Fourth Proportional to 684,725.40, 1,027,088.10 and 446,779.80

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Solution

The fourth proportional to 684,725.40, 1,027,088.10 and 446,779.80 is: 670,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,725.40 : 1,027,088.10 = 446,779.80 : x
  2. Step 2: Convert to fraction form
    684,725.40/1,027,088.10 = 446,779.80/x
  3. Step 3: Cross multiply
    684,725.40x = 1,027,088.10 × 446,779.80
  4. Step 4: Simplify right side
    684,725.40x = 458,882,215,900.38
  5. Step 5: Solve for x
    x = 458,882,215,900.38/684,725.40
  6. Step 6: Final answer
    x = 670,169.70

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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.