Home / 1,129,237.61-1,692,816.77-489,139.16

Finding the Fourth Proportional to 1,129,237.61, 1,692,816.77 and 489,139.16

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Solution

The fourth proportional to 1,129,237.61, 1,692,816.77 and 489,139.16 is: 733,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,237.61 : 1,692,816.77 = 489,139.16 : x
  2. Step 2: Convert to fraction form
    1,129,237.61/1,692,816.77 = 489,139.16/x
  3. Step 3: Cross multiply
    1,129,237.61x = 1,692,816.77 × 489,139.16
  4. Step 4: Simplify right side
    1,129,237.61x = 828,022,965,670.48
  5. Step 5: Solve for x
    x = 828,022,965,670.48/1,129,237.61
  6. Step 6: Final answer
    x = 733,258.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.