Home / 1,071,000.70-1,609,125.45-805,280.20

Finding the Fourth Proportional to 1,071,000.70, 1,609,125.45 and 805,280.20

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Solution

The fourth proportional to 1,071,000.70, 1,609,125.45 and 805,280.20 is: 1,209,893.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,000.70 : 1,609,125.45 = 805,280.20 : x
  2. Step 2: Convert to fraction form
    1,071,000.70/1,609,125.45 = 805,280.20/x
  3. Step 3: Cross multiply
    1,071,000.70x = 1,609,125.45 × 805,280.20
  4. Step 4: Simplify right side
    1,071,000.70x = 1,295,796,864,201.09
  5. Step 5: Solve for x
    x = 1,295,796,864,201.09/1,071,000.70
  6. Step 6: Final answer
    x = 1,209,893.57

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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.