Home / 1,231,483.95-1,699,432.16-687,629.30

Finding the Fourth Proportional to 1,231,483.95, 1,699,432.16 and 687,629.30

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Solution

The fourth proportional to 1,231,483.95, 1,699,432.16 and 687,629.30 is: 948,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,483.95 : 1,699,432.16 = 687,629.30 : x
  2. Step 2: Convert to fraction form
    1,231,483.95/1,699,432.16 = 687,629.30/x
  3. Step 3: Cross multiply
    1,231,483.95x = 1,699,432.16 × 687,629.30
  4. Step 4: Simplify right side
    1,231,483.95x = 1,168,579,334,642.98
  5. Step 5: Solve for x
    x = 1,168,579,334,642.98/1,231,483.95
  6. Step 6: Final answer
    x = 948,919.66

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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.