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Finding the Fourth Proportional to 566,938.75, 782,375.51 and 312,289.93

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Solution

The fourth proportional to 566,938.75, 782,375.51 and 312,289.93 is: 430,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,938.75 : 782,375.51 = 312,289.93 : x
  2. Step 2: Convert to fraction form
    566,938.75/782,375.51 = 312,289.93/x
  3. Step 3: Cross multiply
    566,938.75x = 782,375.51 × 312,289.93
  4. Step 4: Simplify right side
    566,938.75x = 244,327,993,251.61
  5. Step 5: Solve for x
    x = 244,327,993,251.61/566,938.75
  6. Step 6: Final answer
    x = 430,960.12

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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.