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Finding the Fourth Proportional to 564,660.72, 779,233.32 and 310,028.40

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Solution

The fourth proportional to 564,660.72, 779,233.32 and 310,028.40 is: 427,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,660.72 : 779,233.32 = 310,028.40 : x
  2. Step 2: Convert to fraction form
    564,660.72/779,233.32 = 310,028.40/x
  3. Step 3: Cross multiply
    564,660.72x = 779,233.32 × 310,028.40
  4. Step 4: Simplify right side
    564,660.72x = 241,584,459,426.29
  5. Step 5: Solve for x
    x = 241,584,459,426.29/564,660.72
  6. Step 6: Final answer
    x = 427,840.03

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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.