Home / 495,345.53-683,579.46-280,527.41

Finding the Fourth Proportional to 495,345.53, 683,579.46 and 280,527.41

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Solution

The fourth proportional to 495,345.53, 683,579.46 and 280,527.41 is: 387,129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,345.53 : 683,579.46 = 280,527.41 : x
  2. Step 2: Convert to fraction form
    495,345.53/683,579.46 = 280,527.41/x
  3. Step 3: Cross multiply
    495,345.53x = 683,579.46 × 280,527.41
  4. Step 4: Simplify right side
    495,345.53x = 191,762,775,443.00
  5. Step 5: Solve for x
    x = 191,762,775,443.00/495,345.53
  6. Step 6: Final answer
    x = 387,129.31

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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.