Home / 1,260,578.02-1,739,608.77-687,620.74

Finding the Fourth Proportional to 1,260,578.02, 1,739,608.77 and 687,620.74

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Solution

The fourth proportional to 1,260,578.02, 1,739,608.77 and 687,620.74 is: 948,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,578.02 : 1,739,608.77 = 687,620.74 : x
  2. Step 2: Convert to fraction form
    1,260,578.02/1,739,608.77 = 687,620.74/x
  3. Step 3: Cross multiply
    1,260,578.02x = 1,739,608.77 × 687,620.74
  4. Step 4: Simplify right side
    1,260,578.02x = 1,196,191,069,737.89
  5. Step 5: Solve for x
    x = 1,196,191,069,737.89/1,260,578.02
  6. Step 6: Final answer
    x = 948,922.68

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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.