Home / 1,178,895.22-1,626,875.42-642,351.22

Finding the Fourth Proportional to 1,178,895.22, 1,626,875.42 and 642,351.22

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Solution

The fourth proportional to 1,178,895.22, 1,626,875.42 and 642,351.22 is: 886,444.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,895.22 : 1,626,875.42 = 642,351.22 : x
  2. Step 2: Convert to fraction form
    1,178,895.22/1,626,875.42 = 642,351.22/x
  3. Step 3: Cross multiply
    1,178,895.22x = 1,626,875.42 × 642,351.22
  4. Step 4: Simplify right side
    1,178,895.22x = 1,045,025,410,825.01
  5. Step 5: Solve for x
    x = 1,045,025,410,825.01/1,178,895.22
  6. Step 6: Final answer
    x = 886,444.69

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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.