Home / 1,036,143.97-1,555,101.65-405,500.65

Finding the Fourth Proportional to 1,036,143.97, 1,555,101.65 and 405,500.65

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Solution

The fourth proportional to 1,036,143.97, 1,555,101.65 and 405,500.65 is: 608,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,143.97 : 1,555,101.65 = 405,500.65 : x
  2. Step 2: Convert to fraction form
    1,036,143.97/1,555,101.65 = 405,500.65/x
  3. Step 3: Cross multiply
    1,036,143.97x = 1,555,101.65 × 405,500.65
  4. Step 4: Simplify right side
    1,036,143.97x = 630,594,729,891.07
  5. Step 5: Solve for x
    x = 630,594,729,891.07/1,036,143.97
  6. Step 6: Final answer
    x = 608,597.60

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Double scale
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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.