Home / 871,428.86-1,202,547.81-484,234.28

Finding the Fourth Proportional to 871,428.86, 1,202,547.81 and 484,234.28

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Solution

The fourth proportional to 871,428.86, 1,202,547.81 and 484,234.28 is: 668,229.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,428.86 : 1,202,547.81 = 484,234.28 : x
  2. Step 2: Convert to fraction form
    871,428.86/1,202,547.81 = 484,234.28/x
  3. Step 3: Cross multiply
    871,428.86x = 1,202,547.81 × 484,234.28
  4. Step 4: Simplify right side
    871,428.86x = 582,314,872,940.93
  5. Step 5: Solve for x
    x = 582,314,872,940.93/871,428.86
  6. Step 6: Final answer
    x = 668,229.96

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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.