Home / 1,423,458.24-1,964,388.96-778,891.20

Finding the Fourth Proportional to 1,423,458.24, 1,964,388.96 and 778,891.20

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Solution

The fourth proportional to 1,423,458.24, 1,964,388.96 and 778,891.20 is: 1,074,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,458.24 : 1,964,388.96 = 778,891.20 : x
  2. Step 2: Convert to fraction form
    1,423,458.24/1,964,388.96 = 778,891.20/x
  3. Step 3: Cross multiply
    1,423,458.24x = 1,964,388.96 × 778,891.20
  4. Step 4: Simplify right side
    1,423,458.24x = 1,530,045,274,321.15
  5. Step 5: Solve for x
    x = 1,530,045,274,321.15/1,423,458.24
  6. Step 6: Final answer
    x = 1,074,878.93

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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.