Home / 1,330,887.40-1,996,331.10-384,353.80

Finding the Fourth Proportional to 1,330,887.40, 1,996,331.10 and 384,353.80

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Solution

The fourth proportional to 1,330,887.40, 1,996,331.10 and 384,353.80 is: 576,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,887.40 : 1,996,331.10 = 384,353.80 : x
  2. Step 2: Convert to fraction form
    1,330,887.40/1,996,331.10 = 384,353.80/x
  3. Step 3: Cross multiply
    1,330,887.40x = 1,996,331.10 × 384,353.80
  4. Step 4: Simplify right side
    1,330,887.40x = 767,297,444,343.18
  5. Step 5: Solve for x
    x = 767,297,444,343.18/1,330,887.40
  6. Step 6: Final answer
    x = 576,530.70

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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.