Home / 1,298,109.14-1,791,498.48-717,445.65

Finding the Fourth Proportional to 1,298,109.14, 1,791,498.48 and 717,445.65

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Solution

The fourth proportional to 1,298,109.14, 1,791,498.48 and 717,445.65 is: 990,134.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,109.14 : 1,791,498.48 = 717,445.65 : x
  2. Step 2: Convert to fraction form
    1,298,109.14/1,791,498.48 = 717,445.65/x
  3. Step 3: Cross multiply
    1,298,109.14x = 1,791,498.48 × 717,445.65
  4. Step 4: Simplify right side
    1,298,109.14x = 1,285,302,791,457.61
  5. Step 5: Solve for x
    x = 1,285,302,791,457.61/1,298,109.14
  6. Step 6: Final answer
    x = 990,134.61

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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.