Home / 1,305,337.20-1,958,005.80-744,428.40

Finding the Fourth Proportional to 1,305,337.20, 1,958,005.80 and 744,428.40

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Solution

The fourth proportional to 1,305,337.20, 1,958,005.80 and 744,428.40 is: 1,116,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,337.20 : 1,958,005.80 = 744,428.40 : x
  2. Step 2: Convert to fraction form
    1,305,337.20/1,958,005.80 = 744,428.40/x
  3. Step 3: Cross multiply
    1,305,337.20x = 1,958,005.80 × 744,428.40
  4. Step 4: Simplify right side
    1,305,337.20x = 1,457,595,124,884.72
  5. Step 5: Solve for x
    x = 1,457,595,124,884.72/1,305,337.20
  6. Step 6: Final answer
    x = 1,116,642.60

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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.