Home / 1,368,749.65-2,053,101.88-409,207.50

Finding the Fourth Proportional to 1,368,749.65, 2,053,101.88 and 409,207.50

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Solution

The fourth proportional to 1,368,749.65, 2,053,101.88 and 409,207.50 is: 613,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,749.65 : 2,053,101.88 = 409,207.50 : x
  2. Step 2: Convert to fraction form
    1,368,749.65/2,053,101.88 = 409,207.50/x
  3. Step 3: Cross multiply
    1,368,749.65x = 2,053,101.88 × 409,207.50
  4. Step 4: Simplify right side
    1,368,749.65x = 840,144,687,560.10
  5. Step 5: Solve for x
    x = 840,144,687,560.10/1,368,749.65
  6. Step 6: Final answer
    x = 613,804.49

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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.