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Finding the Fourth Proportional to 384,711.70, 577,067.55 and 366,340.90

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Solution

The fourth proportional to 384,711.70, 577,067.55 and 366,340.90 is: 549,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,711.70 : 577,067.55 = 366,340.90 : x
  2. Step 2: Convert to fraction form
    384,711.70/577,067.55 = 366,340.90/x
  3. Step 3: Cross multiply
    384,711.70x = 577,067.55 × 366,340.90
  4. Step 4: Simplify right side
    384,711.70x = 211,403,445,627.80
  5. Step 5: Solve for x
    x = 211,403,445,627.80/384,711.70
  6. Step 6: Final answer
    x = 549,511.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.