Home / 495,439.02-683,682.92-280,580.60

Finding the Fourth Proportional to 495,439.02, 683,682.92 and 280,580.60

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Solution

The fourth proportional to 495,439.02, 683,682.92 and 280,580.60 is: 387,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,439.02 : 683,682.92 = 280,580.60 : x
  2. Step 2: Convert to fraction form
    495,439.02/683,682.92 = 280,580.60/x
  3. Step 3: Cross multiply
    495,439.02x = 683,682.92 × 280,580.60
  4. Step 4: Simplify right side
    495,439.02x = 191,828,163,903.35
  5. Step 5: Solve for x
    x = 191,828,163,903.35/495,439.02
  6. Step 6: Final answer
    x = 387,188.24

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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.