Home / 871,237.77-1,307,191.68-421,924.07

Finding the Fourth Proportional to 871,237.77, 1,307,191.68 and 421,924.07

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Solution

The fourth proportional to 871,237.77, 1,307,191.68 and 421,924.07 is: 633,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,237.77 : 1,307,191.68 = 421,924.07 : x
  2. Step 2: Convert to fraction form
    871,237.77/1,307,191.68 = 421,924.07/x
  3. Step 3: Cross multiply
    871,237.77x = 1,307,191.68 × 421,924.07
  4. Step 4: Simplify right side
    871,237.77x = 551,535,627,359.78
  5. Step 5: Solve for x
    x = 551,535,627,359.78/871,237.77
  6. Step 6: Final answer
    x = 633,048.34

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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.