Home / 495,428.04-683,706.84-280,563.48

Finding the Fourth Proportional to 495,428.04, 683,706.84 and 280,563.48

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Solution

The fourth proportional to 495,428.04, 683,706.84 and 280,563.48 is: 387,186.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,428.04 : 683,706.84 = 280,563.48 : x
  2. Step 2: Convert to fraction form
    495,428.04/683,706.84 = 280,563.48/x
  3. Step 3: Cross multiply
    495,428.04x = 683,706.84 × 280,563.48
  4. Step 4: Simplify right side
    495,428.04x = 191,823,170,330.20
  5. Step 5: Solve for x
    x = 191,823,170,330.20/495,428.04
  6. Step 6: Final answer
    x = 387,186.75

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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.