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Finding the Fourth Proportional to 562,755.75, 776,677.05 and 320,982.90

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Solution

The fourth proportional to 562,755.75, 776,677.05 and 320,982.90 is: 442,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,755.75 : 776,677.05 = 320,982.90 : x
  2. Step 2: Convert to fraction form
    562,755.75/776,677.05 = 320,982.90/x
  3. Step 3: Cross multiply
    562,755.75x = 776,677.05 × 320,982.90
  4. Step 4: Simplify right side
    562,755.75x = 249,300,051,872.45
  5. Step 5: Solve for x
    x = 249,300,051,872.45/562,755.75
  6. Step 6: Final answer
    x = 442,998.68

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1.5x scale

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.