Home / 2,078,785.70-3,117,530.55-817,000.10

Finding the Fourth Proportional to 2,078,785.70, 3,117,530.55 and 817,000.10

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Solution

The fourth proportional to 2,078,785.70, 3,117,530.55 and 817,000.10 is: 1,225,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,785.70 : 3,117,530.55 = 817,000.10 : x
  2. Step 2: Convert to fraction form
    2,078,785.70/3,117,530.55 = 817,000.10/x
  3. Step 3: Cross multiply
    2,078,785.70x = 3,117,530.55 × 817,000.10
  4. Step 4: Simplify right side
    2,078,785.70x = 2,547,022,771,103.05
  5. Step 5: Solve for x
    x = 2,547,022,771,103.05/2,078,785.70
  6. Step 6: Final answer
    x = 1,225,245.47

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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.