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Finding the Fourth Proportional to 495,989.81, 684,529.25 and 292,059.71

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Solution

The fourth proportional to 495,989.81, 684,529.25 and 292,059.71 is: 403,079.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,989.81 : 684,529.25 = 292,059.71 : x
  2. Step 2: Convert to fraction form
    495,989.81/684,529.25 = 292,059.71/x
  3. Step 3: Cross multiply
    495,989.81x = 684,529.25 × 292,059.71
  4. Step 4: Simplify right side
    495,989.81x = 199,923,410,818.87
  5. Step 5: Solve for x
    x = 199,923,410,818.87/495,989.81
  6. Step 6: Final answer
    x = 403,079.68

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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.