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Finding the Fourth Proportional to 1,324,784.66, 1,985,848.32 and 615,310.94

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Solution

The fourth proportional to 1,324,784.66, 1,985,848.32 and 615,310.94 is: 922,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,784.66 : 1,985,848.32 = 615,310.94 : x
  2. Step 2: Convert to fraction form
    1,324,784.66/1,985,848.32 = 615,310.94/x
  3. Step 3: Cross multiply
    1,324,784.66x = 1,985,848.32 × 615,310.94
  4. Step 4: Simplify right side
    1,324,784.66x = 1,221,914,196,476.62
  5. Step 5: Solve for x
    x = 1,221,914,196,476.62/1,324,784.66
  6. Step 6: Final answer
    x = 922,349.29

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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.