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Finding the Fourth Proportional to 558,718, 770,896.38 and 329,284.42

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Solution

The fourth proportional to 558,718, 770,896.38 and 329,284.42 is: 454,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,718 : 770,896.38 = 329,284.42 : x
  2. Step 2: Convert to fraction form
    558,718/770,896.38 = 329,284.42/x
  3. Step 3: Cross multiply
    558,718x = 770,896.38 × 329,284.42
  4. Step 4: Simplify right side
    558,718x = 253,844,167,368.40
  5. Step 5: Solve for x
    x = 253,844,167,368.40/558,718
  6. Step 6: Final answer
    x = 454,333.25

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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.