Home / 897,500.75-1,238,555.09-489,601.32

Finding the Fourth Proportional to 897,500.75, 1,238,555.09 and 489,601.32

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Solution

The fourth proportional to 897,500.75, 1,238,555.09 and 489,601.32 is: 675,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,500.75 : 1,238,555.09 = 489,601.32 : x
  2. Step 2: Convert to fraction form
    897,500.75/1,238,555.09 = 489,601.32/x
  3. Step 3: Cross multiply
    897,500.75x = 1,238,555.09 × 489,601.32
  4. Step 4: Simplify right side
    897,500.75x = 606,398,204,508.71
  5. Step 5: Solve for x
    x = 606,398,204,508.71/897,500.75
  6. Step 6: Final answer
    x = 675,652.03

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Double scale
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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.