Home / 897,415.20-1,238,456.32-489,523.92

Finding the Fourth Proportional to 897,415.20, 1,238,456.32 and 489,523.92

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Solution

The fourth proportional to 897,415.20, 1,238,456.32 and 489,523.92 is: 675,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,415.20 : 1,238,456.32 = 489,523.92 : x
  2. Step 2: Convert to fraction form
    897,415.20/1,238,456.32 = 489,523.92/x
  3. Step 3: Cross multiply
    897,415.20x = 1,238,456.32 × 489,523.92
  4. Step 4: Simplify right side
    897,415.20x = 606,253,992,515.18
  5. Step 5: Solve for x
    x = 606,253,992,515.18/897,415.20
  6. Step 6: Final answer
    x = 675,555.74

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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.