Home / 897,376.60-1,238,383.58-489,487.22

Finding the Fourth Proportional to 897,376.60, 1,238,383.58 and 489,487.22

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Solution

The fourth proportional to 897,376.60, 1,238,383.58 and 489,487.22 is: 675,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,376.60 : 1,238,383.58 = 489,487.22 : x
  2. Step 2: Convert to fraction form
    897,376.60/1,238,383.58 = 489,487.22/x
  3. Step 3: Cross multiply
    897,376.60x = 1,238,383.58 × 489,487.22
  4. Step 4: Simplify right side
    897,376.60x = 606,172,935,867.85
  5. Step 5: Solve for x
    x = 606,172,935,867.85/897,376.60
  6. Step 6: Final answer
    x = 675,494.48

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1.5x scale

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.