Home / 690,739-1,036,060.98-424,540.60

Finding the Fourth Proportional to 690,739, 1,036,060.98 and 424,540.60

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Solution

The fourth proportional to 690,739, 1,036,060.98 and 424,540.60 is: 636,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,739 : 1,036,060.98 = 424,540.60 : x
  2. Step 2: Convert to fraction form
    690,739/1,036,060.98 = 424,540.60/x
  3. Step 3: Cross multiply
    690,739x = 1,036,060.98 × 424,540.60
  4. Step 4: Simplify right side
    690,739x = 439,849,950,085.79
  5. Step 5: Solve for x
    x = 439,849,950,085.79/690,739
  6. Step 6: Final answer
    x = 636,781.69

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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.