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Finding the Fourth Proportional to 495,150.80, 741,851.40 and 405,921.20

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Solution

The fourth proportional to 495,150.80, 741,851.40 and 405,921.20 is: 608,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,150.80 : 741,851.40 = 405,921.20 : x
  2. Step 2: Convert to fraction form
    495,150.80/741,851.40 = 405,921.20/x
  3. Step 3: Cross multiply
    495,150.80x = 741,851.40 × 405,921.20
  4. Step 4: Simplify right side
    495,150.80x = 301,133,210,509.68
  5. Step 5: Solve for x
    x = 301,133,210,509.68/495,150.80
  6. Step 6: Final answer
    x = 608,164.65

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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.