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Finding the Fourth Proportional to 617,554.88, 852,263.26 and 345,617.12

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Solution

The fourth proportional to 617,554.88, 852,263.26 and 345,617.12 is: 476,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,554.88 : 852,263.26 = 345,617.12 : x
  2. Step 2: Convert to fraction form
    617,554.88/852,263.26 = 345,617.12/x
  3. Step 3: Cross multiply
    617,554.88x = 852,263.26 × 345,617.12
  4. Step 4: Simplify right side
    617,554.88x = 294,556,774,669.63
  5. Step 5: Solve for x
    x = 294,556,774,669.63/617,554.88
  6. Step 6: Final answer
    x = 476,972.63

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1.5x scale

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.