Home / 1,143,929.39-1,578,621.96-627,686.62

Finding the Fourth Proportional to 1,143,929.39, 1,578,621.96 and 627,686.62

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Solution

The fourth proportional to 1,143,929.39, 1,578,621.96 and 627,686.62 is: 866,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,929.39 : 1,578,621.96 = 627,686.62 : x
  2. Step 2: Convert to fraction form
    1,143,929.39/1,578,621.96 = 627,686.62/x
  3. Step 3: Cross multiply
    1,143,929.39x = 1,578,621.96 × 627,686.62
  4. Step 4: Simplify right side
    1,143,929.39x = 990,879,878,383.62
  5. Step 5: Solve for x
    x = 990,879,878,383.62/1,143,929.39
  6. Step 6: Final answer
    x = 866,207.21

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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.