Home / 1,423,508.70-1,964,486.10-778,956.06

Finding the Fourth Proportional to 1,423,508.70, 1,964,486.10 and 778,956.06

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Solution

The fourth proportional to 1,423,508.70, 1,964,486.10 and 778,956.06 is: 1,074,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,508.70 : 1,964,486.10 = 778,956.06 : x
  2. Step 2: Convert to fraction form
    1,423,508.70/1,964,486.10 = 778,956.06/x
  3. Step 3: Cross multiply
    1,423,508.70x = 1,964,486.10 × 778,956.06
  4. Step 4: Simplify right side
    1,423,508.70x = 1,530,248,352,380.77
  5. Step 5: Solve for x
    x = 1,530,248,352,380.77/1,423,508.70
  6. Step 6: Final answer
    x = 1,074,983.49

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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.