Home / 871,273.02-1,202,486.67-687,089.35

Finding the Fourth Proportional to 871,273.02, 1,202,486.67 and 687,089.35

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Solution

The fourth proportional to 871,273.02, 1,202,486.67 and 687,089.35 is: 948,285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,273.02 : 1,202,486.67 = 687,089.35 : x
  2. Step 2: Convert to fraction form
    871,273.02/1,202,486.67 = 687,089.35/x
  3. Step 3: Cross multiply
    871,273.02x = 1,202,486.67 × 687,089.35
  4. Step 4: Simplify right side
    871,273.02x = 826,215,785,977.07
  5. Step 5: Solve for x
    x = 826,215,785,977.07/871,273.02
  6. Step 6: Final answer
    x = 948,285.74

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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.