Home / 1,127,815.15-1,555,695.48-668,622.10

Finding the Fourth Proportional to 1,127,815.15, 1,555,695.48 and 668,622.10

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Solution

The fourth proportional to 1,127,815.15, 1,555,695.48 and 668,622.10 is: 922,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,815.15 : 1,555,695.48 = 668,622.10 : x
  2. Step 2: Convert to fraction form
    1,127,815.15/1,555,695.48 = 668,622.10/x
  3. Step 3: Cross multiply
    1,127,815.15x = 1,555,695.48 × 668,622.10
  4. Step 4: Simplify right side
    1,127,815.15x = 1,040,172,371,019.63
  5. Step 5: Solve for x
    x = 1,040,172,371,019.63/1,127,815.15
  6. Step 6: Final answer
    x = 922,289.77

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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.