Home / 897,860.60-1,239,074.03-489,988.85

Finding the Fourth Proportional to 897,860.60, 1,239,074.03 and 489,988.85

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Solution

The fourth proportional to 897,860.60, 1,239,074.03 and 489,988.85 is: 676,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,860.60 : 1,239,074.03 = 489,988.85 : x
  2. Step 2: Convert to fraction form
    897,860.60/1,239,074.03 = 489,988.85/x
  3. Step 3: Cross multiply
    897,860.60x = 1,239,074.03 × 489,988.85
  4. Step 4: Simplify right side
    897,860.60x = 607,132,450,379.25
  5. Step 5: Solve for x
    x = 607,132,450,379.25/897,860.60
  6. Step 6: Final answer
    x = 676,199.02

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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.