Home / 5,678,459.40-8,517,689.10-3,662,920.20

Finding the Fourth Proportional to 5,678,459.40, 8,517,689.10 and 3,662,920.20

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Solution

The fourth proportional to 5,678,459.40, 8,517,689.10 and 3,662,920.20 is: 5,494,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678,459.40 : 8,517,689.10 = 3,662,920.20 : x
  2. Step 2: Convert to fraction form
    5,678,459.40/8,517,689.10 = 3,662,920.20/x
  3. Step 3: Cross multiply
    5,678,459.40x = 8,517,689.10 × 3,662,920.20
  4. Step 4: Simplify right side
    5,678,459.40x = 31,199,615,461,709.82
  5. Step 5: Solve for x
    x = 31,199,615,461,709.82/5,678,459.40
  6. Step 6: Final answer
    x = 5,494,380.30

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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.