Home / 1,423,486.77-1,964,411.75-778,906.97

Finding the Fourth Proportional to 1,423,486.77, 1,964,411.75 and 778,906.97

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Solution

The fourth proportional to 1,423,486.77, 1,964,411.75 and 778,906.97 is: 1,074,891.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,486.77 : 1,964,411.75 = 778,906.97 : x
  2. Step 2: Convert to fraction form
    1,423,486.77/1,964,411.75 = 778,906.97/x
  3. Step 3: Cross multiply
    1,423,486.77x = 1,964,411.75 × 778,906.97
  4. Step 4: Simplify right side
    1,423,486.77x = 1,530,094,004,024.90
  5. Step 5: Solve for x
    x = 1,530,094,004,024.90/1,423,486.77
  6. Step 6: Final answer
    x = 1,074,891.62

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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.