Home / 807,943.80-1,211,138.10-627,929.40

Finding the Fourth Proportional to 807,943.80, 1,211,138.10 and 627,929.40

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Solution

The fourth proportional to 807,943.80, 1,211,138.10 and 627,929.40 is: 941,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,943.80 : 1,211,138.10 = 627,929.40 : x
  2. Step 2: Convert to fraction form
    807,943.80/1,211,138.10 = 627,929.40/x
  3. Step 3: Cross multiply
    807,943.80x = 1,211,138.10 × 627,929.40
  4. Step 4: Simplify right side
    807,943.80x = 760,509,220,450.14
  5. Step 5: Solve for x
    x = 760,509,220,450.14/807,943.80
  6. Step 6: Final answer
    x = 941,289.75

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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.