Home / 897,784.22-1,238,972.08-489,908.42

Finding the Fourth Proportional to 897,784.22, 1,238,972.08 and 489,908.42

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Solution

The fourth proportional to 897,784.22, 1,238,972.08 and 489,908.42 is: 676,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,784.22 : 1,238,972.08 = 489,908.42 : x
  2. Step 2: Convert to fraction form
    897,784.22/1,238,972.08 = 489,908.42/x
  3. Step 3: Cross multiply
    897,784.22x = 1,238,972.08 × 489,908.42
  4. Step 4: Simplify right side
    897,784.22x = 606,982,854,136.91
  5. Step 5: Solve for x
    x = 606,982,854,136.91/897,784.22
  6. Step 6: Final answer
    x = 676,089.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.