Home / 690,416.10-1,036,012.95-269,637.30

Finding the Fourth Proportional to 690,416.10, 1,036,012.95 and 269,637.30

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Solution

The fourth proportional to 690,416.10, 1,036,012.95 and 269,637.30 is: 404,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,416.10 : 1,036,012.95 = 269,637.30 : x
  2. Step 2: Convert to fraction form
    690,416.10/1,036,012.95 = 269,637.30/x
  3. Step 3: Cross multiply
    690,416.10x = 1,036,012.95 × 269,637.30
  4. Step 4: Simplify right side
    690,416.10x = 279,347,734,603.04
  5. Step 5: Solve for x
    x = 279,347,734,603.04/690,416.10
  6. Step 6: Final answer
    x = 404,607.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.