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Finding the Fourth Proportional to 564,707.76, 779,309.28 and 310,059.96

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Solution

The fourth proportional to 564,707.76, 779,309.28 and 310,059.96 is: 427,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,707.76 : 779,309.28 = 310,059.96 : x
  2. Step 2: Convert to fraction form
    564,707.76/779,309.28 = 310,059.96/x
  3. Step 3: Cross multiply
    564,707.76x = 779,309.28 × 310,059.96
  4. Step 4: Simplify right side
    564,707.76x = 241,632,604,184.43
  5. Step 5: Solve for x
    x = 241,632,604,184.43/564,707.76
  6. Step 6: Final answer
    x = 427,889.65

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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.