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Finding the Fourth Proportional to 562,288.28, 775,977.20 and 307,639.44

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Solution

The fourth proportional to 562,288.28, 775,977.20 and 307,639.44 is: 424,553.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,288.28 : 775,977.20 = 307,639.44 : x
  2. Step 2: Convert to fraction form
    562,288.28/775,977.20 = 307,639.44/x
  3. Step 3: Cross multiply
    562,288.28x = 775,977.20 × 307,639.44
  4. Step 4: Simplify right side
    562,288.28x = 238,721,191,260.77
  5. Step 5: Solve for x
    x = 238,721,191,260.77/562,288.28
  6. Step 6: Final answer
    x = 424,553.03

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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.