Home / 1,005,900.78-1,509,025.89-406,837.74

Finding the Fourth Proportional to 1,005,900.78, 1,509,025.89 and 406,837.74

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Solution

The fourth proportional to 1,005,900.78, 1,509,025.89 and 406,837.74 is: 610,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,900.78 : 1,509,025.89 = 406,837.74 : x
  2. Step 2: Convert to fraction form
    1,005,900.78/1,509,025.89 = 406,837.74/x
  3. Step 3: Cross multiply
    1,005,900.78x = 1,509,025.89 × 406,837.74
  4. Step 4: Simplify right side
    1,005,900.78x = 613,928,682,689.09
  5. Step 5: Solve for x
    x = 613,928,682,689.09/1,005,900.78
  6. Step 6: Final answer
    x = 610,327.28

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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.