Home / 1,221,398.96-1,685,539.78-670,110.92

Finding the Fourth Proportional to 1,221,398.96, 1,685,539.78 and 670,110.92

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Solution

The fourth proportional to 1,221,398.96, 1,685,539.78 and 670,110.92 is: 924,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,398.96 : 1,685,539.78 = 670,110.92 : x
  2. Step 2: Convert to fraction form
    1,221,398.96/1,685,539.78 = 670,110.92/x
  3. Step 3: Cross multiply
    1,221,398.96x = 1,685,539.78 × 670,110.92
  4. Step 4: Simplify right side
    1,221,398.96x = 1,129,498,612,672.40
  5. Step 5: Solve for x
    x = 1,129,498,612,672.40/1,221,398.96
  6. Step 6: Final answer
    x = 924,758.13

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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.