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Finding the Fourth Proportional to 564,636.94, 779,200.28 and 310,004.53

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Solution

The fourth proportional to 564,636.94, 779,200.28 and 310,004.53 is: 427,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,636.94 : 779,200.28 = 310,004.53 : x
  2. Step 2: Convert to fraction form
    564,636.94/779,200.28 = 310,004.53/x
  3. Step 3: Cross multiply
    564,636.94x = 779,200.28 × 310,004.53
  4. Step 4: Simplify right side
    564,636.94x = 241,555,616,577.27
  5. Step 5: Solve for x
    x = 241,555,616,577.27/564,636.94
  6. Step 6: Final answer
    x = 427,806.97

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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.