Home / 714,228.87-1,071,622.09-314,589.45

Finding the Fourth Proportional to 714,228.87, 1,071,622.09 and 314,589.45

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Solution

The fourth proportional to 714,228.87, 1,071,622.09 and 314,589.45 is: 472,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,228.87 : 1,071,622.09 = 314,589.45 : x
  2. Step 2: Convert to fraction form
    714,228.87/1,071,622.09 = 314,589.45/x
  3. Step 3: Cross multiply
    714,228.87x = 1,071,622.09 × 314,589.45
  4. Step 4: Simplify right side
    714,228.87x = 337,121,003,900.95
  5. Step 5: Solve for x
    x = 337,121,003,900.95/714,228.87
  6. Step 6: Final answer
    x = 472,006.97

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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.