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Finding the Fourth Proportional to 555,483.94, 766,567.12 and 300,836.14

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Solution

The fourth proportional to 555,483.94, 766,567.12 and 300,836.14 is: 415,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,483.94 : 766,567.12 = 300,836.14 : x
  2. Step 2: Convert to fraction form
    555,483.94/766,567.12 = 300,836.14/x
  3. Step 3: Cross multiply
    555,483.94x = 766,567.12 × 300,836.14
  4. Step 4: Simplify right side
    555,483.94x = 230,611,093,431.72
  5. Step 5: Solve for x
    x = 230,611,093,431.72/555,483.94
  6. Step 6: Final answer
    x = 415,153.48

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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.