Home / 1,260,723.90-1,739,803.07-687,776.07

Finding the Fourth Proportional to 1,260,723.90, 1,739,803.07 and 687,776.07

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Solution

The fourth proportional to 1,260,723.90, 1,739,803.07 and 687,776.07 is: 949,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,723.90 : 1,739,803.07 = 687,776.07 : x
  2. Step 2: Convert to fraction form
    1,260,723.90/1,739,803.07 = 687,776.07/x
  3. Step 3: Cross multiply
    1,260,723.90x = 1,739,803.07 × 687,776.07
  4. Step 4: Simplify right side
    1,260,723.90x = 1,196,594,918,058.53
  5. Step 5: Solve for x
    x = 1,196,594,918,058.53/1,260,723.90
  6. Step 6: Final answer
    x = 949,133.21

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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.