Home / 495,719.53-684,090.57-280,859.17

Finding the Fourth Proportional to 495,719.53, 684,090.57 and 280,859.17

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Solution

The fourth proportional to 495,719.53, 684,090.57 and 280,859.17 is: 387,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,719.53 : 684,090.57 = 280,859.17 : x
  2. Step 2: Convert to fraction form
    495,719.53/684,090.57 = 280,859.17/x
  3. Step 3: Cross multiply
    495,719.53x = 684,090.57 × 280,859.17
  4. Step 4: Simplify right side
    495,719.53x = 192,133,109,695.03
  5. Step 5: Solve for x
    x = 192,133,109,695.03/495,719.53
  6. Step 6: Final answer
    x = 387,584.31

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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.