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Finding the Fourth Proportional to 418,854.26, 577,759.69 and 365,267.90

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Solution

The fourth proportional to 418,854.26, 577,759.69 and 365,267.90 is: 503,843.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,854.26 : 577,759.69 = 365,267.90 : x
  2. Step 2: Convert to fraction form
    418,854.26/577,759.69 = 365,267.90/x
  3. Step 3: Cross multiply
    418,854.26x = 577,759.69 × 365,267.90
  4. Step 4: Simplify right side
    418,854.26x = 211,037,068,670.95
  5. Step 5: Solve for x
    x = 211,037,068,670.95/418,854.26
  6. Step 6: Final answer
    x = 503,843.67

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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.