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Finding the Fourth Proportional to 615,688.34, 923,532.46 and 312,035.20

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Solution

The fourth proportional to 615,688.34, 923,532.46 and 312,035.20 is: 468,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,688.34 : 923,532.46 = 312,035.20 : x
  2. Step 2: Convert to fraction form
    615,688.34/923,532.46 = 312,035.20/x
  3. Step 3: Cross multiply
    615,688.34x = 923,532.46 × 312,035.20
  4. Step 4: Simplify right side
    615,688.34x = 288,174,632,773.67
  5. Step 5: Solve for x
    x = 288,174,632,773.67/615,688.34
  6. Step 6: Final answer
    x = 468,052.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.