Home / 1,423,217.13-1,964,061.78-778,648.11

Finding the Fourth Proportional to 1,423,217.13, 1,964,061.78 and 778,648.11

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Solution

The fourth proportional to 1,423,217.13, 1,964,061.78 and 778,648.11 is: 1,074,546.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,217.13 : 1,964,061.78 = 778,648.11 : x
  2. Step 2: Convert to fraction form
    1,423,217.13/1,964,061.78 = 778,648.11/x
  3. Step 3: Cross multiply
    1,423,217.13x = 1,964,061.78 × 778,648.11
  4. Step 4: Simplify right side
    1,423,217.13x = 1,529,312,992,920.24
  5. Step 5: Solve for x
    x = 1,529,312,992,920.24/1,423,217.13
  6. Step 6: Final answer
    x = 1,074,546.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.