Home / 577,125.60-865,688.40-311,405.10

Finding the Fourth Proportional to 577,125.60, 865,688.40 and 311,405.10

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Solution

The fourth proportional to 577,125.60, 865,688.40 and 311,405.10 is: 467,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,125.60 : 865,688.40 = 311,405.10 : x
  2. Step 2: Convert to fraction form
    577,125.60/865,688.40 = 311,405.10/x
  3. Step 3: Cross multiply
    577,125.60x = 865,688.40 × 311,405.10
  4. Step 4: Simplify right side
    577,125.60x = 269,579,782,770.84
  5. Step 5: Solve for x
    x = 269,579,782,770.84/577,125.60
  6. Step 6: Final answer
    x = 467,107.65

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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.