Home / 1,231,428.94-1,699,477.02-687,669.83

Finding the Fourth Proportional to 1,231,428.94, 1,699,477.02 and 687,669.83

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Solution

The fourth proportional to 1,231,428.94, 1,699,477.02 and 687,669.83 is: 949,043.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,428.94 : 1,699,477.02 = 687,669.83 : x
  2. Step 2: Convert to fraction form
    1,231,428.94/1,699,477.02 = 687,669.83/x
  3. Step 3: Cross multiply
    1,231,428.94x = 1,699,477.02 × 687,669.83
  4. Step 4: Simplify right side
    1,231,428.94x = 1,168,679,073,432.31
  5. Step 5: Solve for x
    x = 1,168,679,073,432.31/1,231,428.94
  6. Step 6: Final answer
    x = 949,043.05

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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.