Home / 1,005,841.77-1,388,019.40-570,288.43

Finding the Fourth Proportional to 1,005,841.77, 1,388,019.40 and 570,288.43

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Solution

The fourth proportional to 1,005,841.77, 1,388,019.40 and 570,288.43 is: 786,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,841.77 : 1,388,019.40 = 570,288.43 : x
  2. Step 2: Convert to fraction form
    1,005,841.77/1,388,019.40 = 570,288.43/x
  3. Step 3: Cross multiply
    1,005,841.77x = 1,388,019.40 × 570,288.43
  4. Step 4: Simplify right side
    1,005,841.77x = 791,571,404,435.54
  5. Step 5: Solve for x
    x = 791,571,404,435.54/1,005,841.77
  6. Step 6: Final answer
    x = 786,974.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.