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Finding the Fourth Proportional to 871,873.92, 1,307,802.51 and 516,632.22

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Solution

The fourth proportional to 871,873.92, 1,307,802.51 and 516,632.22 is: 774,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,873.92 : 1,307,802.51 = 516,632.22 : x
  2. Step 2: Convert to fraction form
    871,873.92/1,307,802.51 = 516,632.22/x
  3. Step 3: Cross multiply
    871,873.92x = 1,307,802.51 × 516,632.22
  4. Step 4: Simplify right side
    871,873.92x = 675,652,914,062.87
  5. Step 5: Solve for x
    x = 675,652,914,062.87/871,873.92
  6. Step 6: Final answer
    x = 774,943.37

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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.