Home / 902,649.61-1,245,645.30-489,177.51

Finding the Fourth Proportional to 902,649.61, 1,245,645.30 and 489,177.51

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Solution

The fourth proportional to 902,649.61, 1,245,645.30 and 489,177.51 is: 675,058.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,649.61 : 1,245,645.30 = 489,177.51 : x
  2. Step 2: Convert to fraction form
    902,649.61/1,245,645.30 = 489,177.51/x
  3. Step 3: Cross multiply
    902,649.61x = 1,245,645.30 × 489,177.51
  4. Step 4: Simplify right side
    902,649.61x = 609,341,666,197.20
  5. Step 5: Solve for x
    x = 609,341,666,197.20/902,649.61
  6. Step 6: Final answer
    x = 675,058.91

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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.