Home / 897,122.30-1,238,058.54-489,246.39

Finding the Fourth Proportional to 897,122.30, 1,238,058.54 and 489,246.39

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Solution

The fourth proportional to 897,122.30, 1,238,058.54 and 489,246.39 is: 675,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,122.30 : 1,238,058.54 = 489,246.39 : x
  2. Step 2: Convert to fraction form
    897,122.30/1,238,058.54 = 489,246.39/x
  3. Step 3: Cross multiply
    897,122.30x = 1,238,058.54 × 489,246.39
  4. Step 4: Simplify right side
    897,122.30x = 605,715,671,303.67
  5. Step 5: Solve for x
    x = 605,715,671,303.67/897,122.30
  6. Step 6: Final answer
    x = 675,176.25

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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.