Home / 897,312.65-1,238,306.21-489,414.49

Finding the Fourth Proportional to 897,312.65, 1,238,306.21 and 489,414.49

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Solution

The fourth proportional to 897,312.65, 1,238,306.21 and 489,414.49 is: 675,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,312.65 : 1,238,306.21 = 489,414.49 : x
  2. Step 2: Convert to fraction form
    897,312.65/1,238,306.21 = 489,414.49/x
  3. Step 3: Cross multiply
    897,312.65x = 1,238,306.21 × 489,414.49
  4. Step 4: Simplify right side
    897,312.65x = 606,045,002,230.98
  5. Step 5: Solve for x
    x = 606,045,002,230.98/897,312.65
  6. Step 6: Final answer
    x = 675,400.04

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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.