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Finding the Fourth Proportional to 384,712.70, 577,069.05 and 366,341.90

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Solution

The fourth proportional to 384,712.70, 577,069.05 and 366,341.90 is: 549,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,712.70 : 577,069.05 = 366,341.90 : x
  2. Step 2: Convert to fraction form
    384,712.70/577,069.05 = 366,341.90/x
  3. Step 3: Cross multiply
    384,712.70x = 577,069.05 × 366,341.90
  4. Step 4: Simplify right side
    384,712.70x = 211,404,572,208.20
  5. Step 5: Solve for x
    x = 211,404,572,208.20/384,712.70
  6. Step 6: Final answer
    x = 549,512.85

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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.