Home / 495,707.27-684,138.04-280,916.54

Finding the Fourth Proportional to 495,707.27, 684,138.04 and 280,916.54

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Solution

The fourth proportional to 495,707.27, 684,138.04 and 280,916.54 is: 387,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,707.27 : 684,138.04 = 280,916.54 : x
  2. Step 2: Convert to fraction form
    495,707.27/684,138.04 = 280,916.54/x
  3. Step 3: Cross multiply
    495,707.27x = 684,138.04 × 280,916.54
  4. Step 4: Simplify right side
    495,707.27x = 192,185,686,956.20
  5. Step 5: Solve for x
    x = 192,185,686,956.20/495,707.27
  6. Step 6: Final answer
    x = 387,699.95

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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.