Home / 1,220,956.12-1,685,020.43-677,267.57

Finding the Fourth Proportional to 1,220,956.12, 1,685,020.43 and 677,267.57

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Solution

The fourth proportional to 1,220,956.12, 1,685,020.43 and 677,267.57 is: 934,685.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,956.12 : 1,685,020.43 = 677,267.57 : x
  2. Step 2: Convert to fraction form
    1,220,956.12/1,685,020.43 = 677,267.57/x
  3. Step 3: Cross multiply
    1,220,956.12x = 1,685,020.43 × 677,267.57
  4. Step 4: Simplify right side
    1,220,956.12x = 1,141,209,692,026.46
  5. Step 5: Solve for x
    x = 1,141,209,692,026.46/1,220,956.12
  6. Step 6: Final answer
    x = 934,685.26

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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.