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Finding the Fourth Proportional to 566,775.28, 782,185.46 and 312,126.46

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Solution

The fourth proportional to 566,775.28, 782,185.46 and 312,126.46 is: 430,754.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,775.28 : 782,185.46 = 312,126.46 : x
  2. Step 2: Convert to fraction form
    566,775.28/782,185.46 = 312,126.46/x
  3. Step 3: Cross multiply
    566,775.28x = 782,185.46 × 312,126.46
  4. Step 4: Simplify right side
    566,775.28x = 244,140,778,693.27
  5. Step 5: Solve for x
    x = 244,140,778,693.27/566,775.28
  6. Step 6: Final answer
    x = 430,754.11

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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.