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Finding the Fourth Proportional to 562,469.87, 776,210.95 and 307,820.45

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Solution

The fourth proportional to 562,469.87, 776,210.95 and 307,820.45 is: 424,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,469.87 : 776,210.95 = 307,820.45 : x
  2. Step 2: Convert to fraction form
    562,469.87/776,210.95 = 307,820.45/x
  3. Step 3: Cross multiply
    562,469.87x = 776,210.95 × 307,820.45
  4. Step 4: Simplify right side
    562,469.87x = 238,933,606,249.23
  5. Step 5: Solve for x
    x = 238,933,606,249.23/562,469.87
  6. Step 6: Final answer
    x = 424,793.61

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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.