Home / 1,182,479.23-1,631,820.94-638,615.14

Finding the Fourth Proportional to 1,182,479.23, 1,631,820.94 and 638,615.14

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Solution

The fourth proportional to 1,182,479.23, 1,631,820.94 and 638,615.14 is: 881,288.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,479.23 : 1,631,820.94 = 638,615.14 : x
  2. Step 2: Convert to fraction form
    1,182,479.23/1,631,820.94 = 638,615.14/x
  3. Step 3: Cross multiply
    1,182,479.23x = 1,631,820.94 × 638,615.14
  4. Step 4: Simplify right side
    1,182,479.23x = 1,042,105,552,376.94
  5. Step 5: Solve for x
    x = 1,042,105,552,376.94/1,182,479.23
  6. Step 6: Final answer
    x = 881,288.67

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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.