Home / 690,696.82-1,036,155.95-291,396.41

Finding the Fourth Proportional to 690,696.82, 1,036,155.95 and 291,396.41

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Solution

The fourth proportional to 690,696.82, 1,036,155.95 and 291,396.41 is: 437,141.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,696.82 : 1,036,155.95 = 291,396.41 : x
  2. Step 2: Convert to fraction form
    690,696.82/1,036,155.95 = 291,396.41/x
  3. Step 3: Cross multiply
    690,696.82x = 1,036,155.95 × 291,396.41
  4. Step 4: Simplify right side
    690,696.82x = 301,932,124,030.14
  5. Step 5: Solve for x
    x = 301,932,124,030.14/690,696.82
  6. Step 6: Final answer
    x = 437,141.33

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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.