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Finding the Fourth Proportional to 562,571.28, 776,355.60 and 307,917

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Solution

The fourth proportional to 562,571.28, 776,355.60 and 307,917 is: 424,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,571.28 : 776,355.60 = 307,917 : x
  2. Step 2: Convert to fraction form
    562,571.28/776,355.60 = 307,917/x
  3. Step 3: Cross multiply
    562,571.28x = 776,355.60 × 307,917
  4. Step 4: Simplify right side
    562,571.28x = 239,053,087,285.20
  5. Step 5: Solve for x
    x = 239,053,087,285.20/562,571.28
  6. Step 6: Final answer
    x = 424,929.42

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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.