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Finding the Fourth Proportional to 495,439.04, 683,722.02 and 280,574.48

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Solution

The fourth proportional to 495,439.04, 683,722.02 and 280,574.48 is: 387,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,439.04 : 683,722.02 = 280,574.48 : x
  2. Step 2: Convert to fraction form
    495,439.04/683,722.02 = 280,574.48/x
  3. Step 3: Cross multiply
    495,439.04x = 683,722.02 × 280,574.48
  4. Step 4: Simplify right side
    495,439.04x = 191,834,950,226.05
  5. Step 5: Solve for x
    x = 191,834,950,226.05/495,439.04
  6. Step 6: Final answer
    x = 387,201.93

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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.