Home / 690,113.98-1,035,337.07-290,868.94

Finding the Fourth Proportional to 690,113.98, 1,035,337.07 and 290,868.94

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Solution

The fourth proportional to 690,113.98, 1,035,337.07 and 290,868.94 is: 436,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,113.98 : 1,035,337.07 = 290,868.94 : x
  2. Step 2: Convert to fraction form
    690,113.98/1,035,337.07 = 290,868.94/x
  3. Step 3: Cross multiply
    690,113.98x = 1,035,337.07 × 290,868.94
  4. Step 4: Simplify right side
    690,113.98x = 301,147,396,093.61
  5. Step 5: Solve for x
    x = 301,147,396,093.61/690,113.98
  6. Step 6: Final answer
    x = 436,373.42

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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.