Home / 992,860.86-1,489,100.82-385,648.50

Finding the Fourth Proportional to 992,860.86, 1,489,100.82 and 385,648.50

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Solution

The fourth proportional to 992,860.86, 1,489,100.82 and 385,648.50 is: 578,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,860.86 : 1,489,100.82 = 385,648.50 : x
  2. Step 2: Convert to fraction form
    992,860.86/1,489,100.82 = 385,648.50/x
  3. Step 3: Cross multiply
    992,860.86x = 1,489,100.82 × 385,648.50
  4. Step 4: Simplify right side
    992,860.86x = 574,269,497,581.77
  5. Step 5: Solve for x
    x = 574,269,497,581.77/992,860.86
  6. Step 6: Final answer
    x = 578,398.77

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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.