Home / 1,097,136.18-1,513,438.26-638,199.12

Finding the Fourth Proportional to 1,097,136.18, 1,513,438.26 and 638,199.12

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Solution

The fourth proportional to 1,097,136.18, 1,513,438.26 and 638,199.12 is: 880,360.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,136.18 : 1,513,438.26 = 638,199.12 : x
  2. Step 2: Convert to fraction form
    1,097,136.18/1,513,438.26 = 638,199.12/x
  3. Step 3: Cross multiply
    1,097,136.18x = 1,513,438.26 × 638,199.12
  4. Step 4: Simplify right side
    1,097,136.18x = 965,874,965,706.33
  5. Step 5: Solve for x
    x = 965,874,965,706.33/1,097,136.18
  6. Step 6: Final answer
    x = 880,360.14

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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.