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Finding the Fourth Proportional to 1,105,295, 1,525,307.16 and 628,367

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Solution

The fourth proportional to 1,105,295, 1,525,307.16 and 628,367 is: 867,146.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,295 : 1,525,307.16 = 628,367 : x
  2. Step 2: Convert to fraction form
    1,105,295/1,525,307.16 = 628,367/x
  3. Step 3: Cross multiply
    1,105,295x = 1,525,307.16 × 628,367
  4. Step 4: Simplify right side
    1,105,295x = 958,452,684,207.72
  5. Step 5: Solve for x
    x = 958,452,684,207.72/1,105,295
  6. Step 6: Final answer
    x = 867,146.49

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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.