Home / 1,231,230.81-1,699,094.28-687,361.86

Finding the Fourth Proportional to 1,231,230.81, 1,699,094.28 and 687,361.86

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Solution

The fourth proportional to 1,231,230.81, 1,699,094.28 and 687,361.86 is: 948,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,230.81 : 1,699,094.28 = 687,361.86 : x
  2. Step 2: Convert to fraction form
    1,231,230.81/1,699,094.28 = 687,361.86/x
  3. Step 3: Cross multiply
    1,231,230.81x = 1,699,094.28 × 687,361.86
  4. Step 4: Simplify right side
    1,231,230.81x = 1,167,892,604,616.16
  5. Step 5: Solve for x
    x = 1,167,892,604,616.16/1,231,230.81
  6. Step 6: Final answer
    x = 948,557.00

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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.