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Finding the Fourth Proportional to 561,952.62, 775,518.84 and 317,019.42

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Solution

The fourth proportional to 561,952.62, 775,518.84 and 317,019.42 is: 437,500.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,952.62 : 775,518.84 = 317,019.42 : x
  2. Step 2: Convert to fraction form
    561,952.62/775,518.84 = 317,019.42/x
  3. Step 3: Cross multiply
    561,952.62x = 775,518.84 × 317,019.42
  4. Step 4: Simplify right side
    561,952.62x = 245,854,532,855.87
  5. Step 5: Solve for x
    x = 245,854,532,855.87/561,952.62
  6. Step 6: Final answer
    x = 437,500.47

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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.