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Finding the Fourth Proportional to 617,637.15, 852,299.69 and 345,659.13

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Solution

The fourth proportional to 617,637.15, 852,299.69 and 345,659.13 is: 476,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,637.15 : 852,299.69 = 345,659.13 : x
  2. Step 2: Convert to fraction form
    617,637.15/852,299.69 = 345,659.13/x
  3. Step 3: Cross multiply
    617,637.15x = 852,299.69 × 345,659.13
  4. Step 4: Simplify right side
    617,637.15x = 294,605,167,616.37
  5. Step 5: Solve for x
    x = 294,605,167,616.37/617,637.15
  6. Step 6: Final answer
    x = 476,987.45

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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.