Home / 495,564.48-683,857.08-280,700.24

Finding the Fourth Proportional to 495,564.48, 683,857.08 and 280,700.24

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Solution

The fourth proportional to 495,564.48, 683,857.08 and 280,700.24 is: 387,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,564.48 : 683,857.08 = 280,700.24 : x
  2. Step 2: Convert to fraction form
    495,564.48/683,857.08 = 280,700.24/x
  3. Step 3: Cross multiply
    495,564.48x = 683,857.08 × 280,700.24
  4. Step 4: Simplify right side
    495,564.48x = 191,958,843,062.41
  5. Step 5: Solve for x
    x = 191,958,843,062.41/495,564.48
  6. Step 6: Final answer
    x = 387,353.92

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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.