Home / 495,438.30-683,682.01-280,579.93

Finding the Fourth Proportional to 495,438.30, 683,682.01 and 280,579.93

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Solution

The fourth proportional to 495,438.30, 683,682.01 and 280,579.93 is: 387,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,438.30 : 683,682.01 = 280,579.93 : x
  2. Step 2: Convert to fraction form
    495,438.30/683,682.01 = 280,579.93/x
  3. Step 3: Cross multiply
    495,438.30x = 683,682.01 × 280,579.93
  4. Step 4: Simplify right side
    495,438.30x = 191,827,448,097.40
  5. Step 5: Solve for x
    x = 191,827,448,097.40/495,438.30
  6. Step 6: Final answer
    x = 387,187.36

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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.