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Finding the Fourth Proportional to 495,845.80, 744,459.90 and 309,221.80

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Solution

The fourth proportional to 495,845.80, 744,459.90 and 309,221.80 is: 464,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,845.80 : 744,459.90 = 309,221.80 : x
  2. Step 2: Convert to fraction form
    495,845.80/744,459.90 = 309,221.80/x
  3. Step 3: Cross multiply
    495,845.80x = 744,459.90 × 309,221.80
  4. Step 4: Simplify right side
    495,845.80x = 230,203,230,305.82
  5. Step 5: Solve for x
    x = 230,203,230,305.82/495,845.80
  6. Step 6: Final answer
    x = 464,263.75

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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.