Home / 1,931,778.95-2,665,721.60-1,072,271.55

Finding the Fourth Proportional to 1,931,778.95, 2,665,721.60 and 1,072,271.55

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Solution

The fourth proportional to 1,931,778.95, 2,665,721.60 and 1,072,271.55 is: 1,479,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,778.95 : 2,665,721.60 = 1,072,271.55 : x
  2. Step 2: Convert to fraction form
    1,931,778.95/2,665,721.60 = 1,072,271.55/x
  3. Step 3: Cross multiply
    1,931,778.95x = 2,665,721.60 × 1,072,271.55
  4. Step 4: Simplify right side
    1,931,778.95x = 2,858,377,431,900.48
  5. Step 5: Solve for x
    x = 2,858,377,431,900.48/1,931,778.95
  6. Step 6: Final answer
    x = 1,479,660.72

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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.