Home / 871,142.58-1,306,667.34-272,035.17

Finding the Fourth Proportional to 871,142.58, 1,306,667.34 and 272,035.17

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Solution

The fourth proportional to 871,142.58, 1,306,667.34 and 272,035.17 is: 408,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,142.58 : 1,306,667.34 = 272,035.17 : x
  2. Step 2: Convert to fraction form
    871,142.58/1,306,667.34 = 272,035.17/x
  3. Step 3: Cross multiply
    871,142.58x = 1,306,667.34 × 272,035.17
  4. Step 4: Simplify right side
    871,142.58x = 355,459,471,970.35
  5. Step 5: Solve for x
    x = 355,459,471,970.35/871,142.58
  6. Step 6: Final answer
    x = 408,038.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.