Home / 1,290,618.39-1,781,276.31-747,053.89

Finding the Fourth Proportional to 1,290,618.39, 1,781,276.31 and 747,053.89

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Solution

The fourth proportional to 1,290,618.39, 1,781,276.31 and 747,053.89 is: 1,031,063.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,618.39 : 1,781,276.31 = 747,053.89 : x
  2. Step 2: Convert to fraction form
    1,290,618.39/1,781,276.31 = 747,053.89/x
  3. Step 3: Cross multiply
    1,290,618.39x = 1,781,276.31 × 747,053.89
  4. Step 4: Simplify right side
    1,290,618.39x = 1,330,709,396,550.35
  5. Step 5: Solve for x
    x = 1,330,709,396,550.35/1,290,618.39
  6. Step 6: Final answer
    x = 1,031,063.41

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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.