Home / 388,828.20-581,687.10-336,815.40

Finding the Fourth Proportional to 388,828.20, 581,687.10 and 336,815.40

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Solution

The fourth proportional to 388,828.20, 581,687.10 and 336,815.40 is: 503,875.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,828.20 : 581,687.10 = 336,815.40 : x
  2. Step 2: Convert to fraction form
    388,828.20/581,687.10 = 336,815.40/x
  3. Step 3: Cross multiply
    388,828.20x = 581,687.10 × 336,815.40
  4. Step 4: Simplify right side
    388,828.20x = 195,921,173,261.34
  5. Step 5: Solve for x
    x = 195,921,173,261.34/388,828.20
  6. Step 6: Final answer
    x = 503,875.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.