Home / 1,119,192.80-1,679,445.30-409,292.60

Finding the Fourth Proportional to 1,119,192.80, 1,679,445.30 and 409,292.60

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Solution

The fourth proportional to 1,119,192.80, 1,679,445.30 and 409,292.60 is: 614,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,192.80 : 1,679,445.30 = 409,292.60 : x
  2. Step 2: Convert to fraction form
    1,119,192.80/1,679,445.30 = 409,292.60/x
  3. Step 3: Cross multiply
    1,119,192.80x = 1,679,445.30 × 409,292.60
  4. Step 4: Simplify right side
    1,119,192.80x = 687,384,533,394.78
  5. Step 5: Solve for x
    x = 687,384,533,394.78/1,119,192.80
  6. Step 6: Final answer
    x = 614,178.84

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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.