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Finding the Fourth Proportional to 564,989.77, 779,699.33 and 310,346.29

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Solution

The fourth proportional to 564,989.77, 779,699.33 and 310,346.29 is: 428,285.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,989.77 : 779,699.33 = 310,346.29 : x
  2. Step 2: Convert to fraction form
    564,989.77/779,699.33 = 310,346.29/x
  3. Step 3: Cross multiply
    564,989.77x = 779,699.33 × 310,346.29
  4. Step 4: Simplify right side
    564,989.77x = 241,976,791,258.36
  5. Step 5: Solve for x
    x = 241,976,791,258.36/564,989.77
  6. Step 6: Final answer
    x = 428,285.27

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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.