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Finding the Fourth Proportional to 570,898.58, 787,833.38 and 309,248.96

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Solution

The fourth proportional to 570,898.58, 787,833.38 and 309,248.96 is: 426,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,898.58 : 787,833.38 = 309,248.96 : x
  2. Step 2: Convert to fraction form
    570,898.58/787,833.38 = 309,248.96/x
  3. Step 3: Cross multiply
    570,898.58x = 787,833.38 × 309,248.96
  4. Step 4: Simplify right side
    570,898.58x = 243,636,647,932.87
  5. Step 5: Solve for x
    x = 243,636,647,932.87/570,898.58
  6. Step 6: Final answer
    x = 426,759.95

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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.