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Finding the Fourth Proportional to 495,864.80, 744,380.40 and 492,365.60

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Solution

The fourth proportional to 495,864.80, 744,380.40 and 492,365.60 is: 739,127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,864.80 : 744,380.40 = 492,365.60 : x
  2. Step 2: Convert to fraction form
    495,864.80/744,380.40 = 492,365.60/x
  3. Step 3: Cross multiply
    495,864.80x = 744,380.40 × 492,365.60
  4. Step 4: Simplify right side
    495,864.80x = 366,507,302,274.24
  5. Step 5: Solve for x
    x = 366,507,302,274.24/495,864.80
  6. Step 6: Final answer
    x = 739,127.48

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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.