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Finding the Fourth Proportional to 495,661.52, 684,010.52 and 280,801.07

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Solution

The fourth proportional to 495,661.52, 684,010.52 and 280,801.07 is: 387,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,661.52 : 684,010.52 = 280,801.07 : x
  2. Step 2: Convert to fraction form
    495,661.52/684,010.52 = 280,801.07/x
  3. Step 3: Cross multiply
    495,661.52x = 684,010.52 × 280,801.07
  4. Step 4: Simplify right side
    495,661.52x = 192,070,884,503.25
  5. Step 5: Solve for x
    x = 192,070,884,503.25/495,661.52
  6. Step 6: Final answer
    x = 387,504.13

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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.