Home / 1,330,672.05-1,996,008.08-432,143.10

Finding the Fourth Proportional to 1,330,672.05, 1,996,008.08 and 432,143.10

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Solution

The fourth proportional to 1,330,672.05, 1,996,008.08 and 432,143.10 is: 648,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,672.05 : 1,996,008.08 = 432,143.10 : x
  2. Step 2: Convert to fraction form
    1,330,672.05/1,996,008.08 = 432,143.10/x
  3. Step 3: Cross multiply
    1,330,672.05x = 1,996,008.08 × 432,143.10
  4. Step 4: Simplify right side
    1,330,672.05x = 862,561,117,155.53
  5. Step 5: Solve for x
    x = 862,561,117,155.53/1,330,672.05
  6. Step 6: Final answer
    x = 648,214.65

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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.