Home / 1,213,140.20-1,819,943.57-465,127.88

Finding the Fourth Proportional to 1,213,140.20, 1,819,943.57 and 465,127.88

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Solution

The fourth proportional to 1,213,140.20, 1,819,943.57 and 465,127.88 is: 697,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,140.20 : 1,819,943.57 = 465,127.88 : x
  2. Step 2: Convert to fraction form
    1,213,140.20/1,819,943.57 = 465,127.88/x
  3. Step 3: Cross multiply
    1,213,140.20x = 1,819,943.57 × 465,127.88
  4. Step 4: Simplify right side
    1,213,140.20x = 846,506,486,496.83
  5. Step 5: Solve for x
    x = 846,506,486,496.83/1,213,140.20
  6. Step 6: Final answer
    x = 697,781.25

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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.