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Finding the Fourth Proportional to 613,366.08, 919,368.72 and 258,275.04

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Solution

The fourth proportional to 613,366.08, 919,368.72 and 258,275.04 is: 387,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,366.08 : 919,368.72 = 258,275.04 : x
  2. Step 2: Convert to fraction form
    613,366.08/919,368.72 = 258,275.04/x
  3. Step 3: Cross multiply
    613,366.08x = 919,368.72 × 258,275.04
  4. Step 4: Simplify right side
    613,366.08x = 237,449,992,932.75
  5. Step 5: Solve for x
    x = 237,449,992,932.75/613,366.08
  6. Step 6: Final answer
    x = 387,126.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.