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Finding the Fourth Proportional to 570,787.61, 787,699.61 and 325,767.44

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Solution

The fourth proportional to 570,787.61, 787,699.61 and 325,767.44 is: 449,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,787.61 : 787,699.61 = 325,767.44 : x
  2. Step 2: Convert to fraction form
    570,787.61/787,699.61 = 325,767.44/x
  3. Step 3: Cross multiply
    570,787.61x = 787,699.61 × 325,767.44
  4. Step 4: Simplify right side
    570,787.61x = 256,606,885,438.70
  5. Step 5: Solve for x
    x = 256,606,885,438.70/570,787.61
  6. Step 6: Final answer
    x = 449,566.32

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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.