Home / 1,238,110.80-1,857,331.44-489,981.84

Finding the Fourth Proportional to 1,238,110.80, 1,857,331.44 and 489,981.84

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Solution

The fourth proportional to 1,238,110.80, 1,857,331.44 and 489,981.84 is: 735,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,110.80 : 1,857,331.44 = 489,981.84 : x
  2. Step 2: Convert to fraction form
    1,238,110.80/1,857,331.44 = 489,981.84/x
  3. Step 3: Cross multiply
    1,238,110.80x = 1,857,331.44 × 489,981.84
  4. Step 4: Simplify right side
    1,238,110.80x = 910,058,676,461.05
  5. Step 5: Solve for x
    x = 910,058,676,461.05/1,238,110.80
  6. Step 6: Final answer
    x = 735,038.15

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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.