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Finding the Fourth Proportional to 587,294.82, 810,398.52 and 345,524.40

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Solution

The fourth proportional to 587,294.82, 810,398.52 and 345,524.40 is: 476,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,294.82 : 810,398.52 = 345,524.40 : x
  2. Step 2: Convert to fraction form
    587,294.82/810,398.52 = 345,524.40/x
  3. Step 3: Cross multiply
    587,294.82x = 810,398.52 × 345,524.40
  4. Step 4: Simplify right side
    587,294.82x = 280,012,462,383.89
  5. Step 5: Solve for x
    x = 280,012,462,383.89/587,294.82
  6. Step 6: Final answer
    x = 476,783.47

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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.