Home / 1,071,005.20-1,609,132.20-805,284.70

Finding the Fourth Proportional to 1,071,005.20, 1,609,132.20 and 805,284.70

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Solution

The fourth proportional to 1,071,005.20, 1,609,132.20 and 805,284.70 is: 1,209,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,005.20 : 1,609,132.20 = 805,284.70 : x
  2. Step 2: Convert to fraction form
    1,071,005.20/1,609,132.20 = 805,284.70/x
  3. Step 3: Cross multiply
    1,071,005.20x = 1,609,132.20 × 805,284.70
  4. Step 4: Simplify right side
    1,071,005.20x = 1,295,809,540,937.34
  5. Step 5: Solve for x
    x = 1,295,809,540,937.34/1,071,005.20
  6. Step 6: Final answer
    x = 1,209,900.33

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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.