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Finding the Fourth Proportional to 523,690.17, 722,774.52 and 308,853.87

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Solution

The fourth proportional to 523,690.17, 722,774.52 and 308,853.87 is: 426,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,690.17 : 722,774.52 = 308,853.87 : x
  2. Step 2: Convert to fraction form
    523,690.17/722,774.52 = 308,853.87/x
  3. Step 3: Cross multiply
    523,690.17x = 722,774.52 × 308,853.87
  4. Step 4: Simplify right side
    523,690.17x = 223,231,707,639.39
  5. Step 5: Solve for x
    x = 223,231,707,639.39/523,690.17
  6. Step 6: Final answer
    x = 426,266.75

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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.