Home / 1,908,047.92-2,862,204.36-645,448.72

Finding the Fourth Proportional to 1,908,047.92, 2,862,204.36 and 645,448.72

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Solution

The fourth proportional to 1,908,047.92, 2,862,204.36 and 645,448.72 is: 968,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908,047.92 : 2,862,204.36 = 645,448.72 : x
  2. Step 2: Convert to fraction form
    1,908,047.92/2,862,204.36 = 645,448.72/x
  3. Step 3: Cross multiply
    1,908,047.92x = 2,862,204.36 × 645,448.72
  4. Step 4: Simplify right side
    1,908,047.92x = 1,847,406,140,540.42
  5. Step 5: Solve for x
    x = 1,847,406,140,540.42/1,908,047.92
  6. Step 6: Final answer
    x = 968,217.89

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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.