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Finding the Fourth Proportional to 562,702.97, 776,604.02 and 320,930.12

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Solution

The fourth proportional to 562,702.97, 776,604.02 and 320,930.12 is: 442,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,702.97 : 776,604.02 = 320,930.12 : x
  2. Step 2: Convert to fraction form
    562,702.97/776,604.02 = 320,930.12/x
  3. Step 3: Cross multiply
    562,702.97x = 776,604.02 × 320,930.12
  4. Step 4: Simplify right side
    562,702.97x = 249,235,621,331.08
  5. Step 5: Solve for x
    x = 249,235,621,331.08/562,702.97
  6. Step 6: Final answer
    x = 442,925.73

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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.