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Finding the Fourth Proportional to 495,918.40, 743,877.60 and 259,333.60

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Solution

The fourth proportional to 495,918.40, 743,877.60 and 259,333.60 is: 389,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,918.40 : 743,877.60 = 259,333.60 : x
  2. Step 2: Convert to fraction form
    495,918.40/743,877.60 = 259,333.60/x
  3. Step 3: Cross multiply
    495,918.40x = 743,877.60 × 259,333.60
  4. Step 4: Simplify right side
    495,918.40x = 192,912,455,967.36
  5. Step 5: Solve for x
    x = 192,912,455,967.36/495,918.40
  6. Step 6: Final answer
    x = 389,000.40

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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.