Home / 690,795-1,036,144.98-424,596.60

Finding the Fourth Proportional to 690,795, 1,036,144.98 and 424,596.60

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Solution

The fourth proportional to 690,795, 1,036,144.98 and 424,596.60 is: 636,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,795 : 1,036,144.98 = 424,596.60 : x
  2. Step 2: Convert to fraction form
    690,795/1,036,144.98 = 424,596.60/x
  3. Step 3: Cross multiply
    690,795x = 1,036,144.98 × 424,596.60
  4. Step 4: Simplify right side
    690,795x = 439,943,635,615.07
  5. Step 5: Solve for x
    x = 439,943,635,615.07/690,795
  6. Step 6: Final answer
    x = 636,865.69

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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.