Home / 2,145,193.80-3,216,840.30-724,864.20

Finding the Fourth Proportional to 2,145,193.80, 3,216,840.30 and 724,864.20

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Solution

The fourth proportional to 2,145,193.80, 3,216,840.30 and 724,864.20 is: 1,086,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,193.80 : 3,216,840.30 = 724,864.20 : x
  2. Step 2: Convert to fraction form
    2,145,193.80/3,216,840.30 = 724,864.20/x
  3. Step 3: Cross multiply
    2,145,193.80x = 3,216,840.30 × 724,864.20
  4. Step 4: Simplify right side
    2,145,193.80x = 2,331,772,370,587.26
  5. Step 5: Solve for x
    x = 2,331,772,370,587.26/2,145,193.80
  6. Step 6: Final answer
    x = 1,086,975.16

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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.