Home / 1,071,001.20-1,609,126.21-805,280.70

Finding the Fourth Proportional to 1,071,001.20, 1,609,126.21 and 805,280.70

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Solution

The fourth proportional to 1,071,001.20, 1,609,126.21 and 805,280.70 is: 1,209,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,001.20 : 1,609,126.21 = 805,280.70 : x
  2. Step 2: Convert to fraction form
    1,071,001.20/1,609,126.21 = 805,280.70/x
  3. Step 3: Cross multiply
    1,071,001.20x = 1,609,126.21 × 805,280.70
  4. Step 4: Simplify right side
    1,071,001.20x = 1,295,798,280,777.15
  5. Step 5: Solve for x
    x = 1,295,798,280,777.15/1,071,001.20
  6. Step 6: Final answer
    x = 1,209,894.33

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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.