Home / 1,145,047.20-1,717,570.80-647,383.20

Finding the Fourth Proportional to 1,145,047.20, 1,717,570.80 and 647,383.20

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Solution

The fourth proportional to 1,145,047.20, 1,717,570.80 and 647,383.20 is: 971,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,047.20 : 1,717,570.80 = 647,383.20 : x
  2. Step 2: Convert to fraction form
    1,145,047.20/1,717,570.80 = 647,383.20/x
  3. Step 3: Cross multiply
    1,145,047.20x = 1,717,570.80 × 647,383.20
  4. Step 4: Simplify right side
    1,145,047.20x = 1,111,926,480,730.56
  5. Step 5: Solve for x
    x = 1,111,926,480,730.56/1,145,047.20
  6. Step 6: Final answer
    x = 971,074.80

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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.