Home / 1,340,031.40-2,010,047.10-809,189.80

Finding the Fourth Proportional to 1,340,031.40, 2,010,047.10 and 809,189.80

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Solution

The fourth proportional to 1,340,031.40, 2,010,047.10 and 809,189.80 is: 1,213,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,031.40 : 2,010,047.10 = 809,189.80 : x
  2. Step 2: Convert to fraction form
    1,340,031.40/2,010,047.10 = 809,189.80/x
  3. Step 3: Cross multiply
    1,340,031.40x = 2,010,047.10 × 809,189.80
  4. Step 4: Simplify right side
    1,340,031.40x = 1,626,509,610,839.58
  5. Step 5: Solve for x
    x = 1,626,509,610,839.58/1,340,031.40
  6. Step 6: Final answer
    x = 1,213,784.70

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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.