Home / 1,145,043.20-1,717,564.80-724,793.60

Finding the Fourth Proportional to 1,145,043.20, 1,717,564.80 and 724,793.60

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Solution

The fourth proportional to 1,145,043.20, 1,717,564.80 and 724,793.60 is: 1,087,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,043.20 : 1,717,564.80 = 724,793.60 : x
  2. Step 2: Convert to fraction form
    1,145,043.20/1,717,564.80 = 724,793.60/x
  3. Step 3: Cross multiply
    1,145,043.20x = 1,717,564.80 × 724,793.60
  4. Step 4: Simplify right side
    1,145,043.20x = 1,244,879,974,625.28
  5. Step 5: Solve for x
    x = 1,244,879,974,625.28/1,145,043.20
  6. Step 6: Final answer
    x = 1,087,190.40

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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.