Home / 1,220,275.76-1,682,982.24-858,895.92

Finding the Fourth Proportional to 1,220,275.76, 1,682,982.24 and 858,895.92

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Solution

The fourth proportional to 1,220,275.76, 1,682,982.24 and 858,895.92 is: 1,184,573.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,275.76 : 1,682,982.24 = 858,895.92 : x
  2. Step 2: Convert to fraction form
    1,220,275.76/1,682,982.24 = 858,895.92/x
  3. Step 3: Cross multiply
    1,220,275.76x = 1,682,982.24 × 858,895.92
  4. Step 4: Simplify right side
    1,220,275.76x = 1,445,506,579,368.46
  5. Step 5: Solve for x
    x = 1,445,506,579,368.46/1,220,275.76
  6. Step 6: Final answer
    x = 1,184,573.71

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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.