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Finding the Fourth Proportional to 566,665.62, 782,015.76 and 312,025.92

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Solution

The fourth proportional to 566,665.62, 782,015.76 and 312,025.92 is: 430,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,665.62 : 782,015.76 = 312,025.92 : x
  2. Step 2: Convert to fraction form
    566,665.62/782,015.76 = 312,025.92/x
  3. Step 3: Cross multiply
    566,665.62x = 782,015.76 × 312,025.92
  4. Step 4: Simplify right side
    566,665.62x = 244,009,186,968.50
  5. Step 5: Solve for x
    x = 244,009,186,968.50/566,665.62
  6. Step 6: Final answer
    x = 430,605.24

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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.