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Finding the Fourth Proportional to 677,309.54, 934,688.48 and 375,503.54

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Solution

The fourth proportional to 677,309.54, 934,688.48 and 375,503.54 is: 518,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,309.54 : 934,688.48 = 375,503.54 : x
  2. Step 2: Convert to fraction form
    677,309.54/934,688.48 = 375,503.54/x
  3. Step 3: Cross multiply
    677,309.54x = 934,688.48 × 375,503.54
  4. Step 4: Simplify right side
    677,309.54x = 350,978,833,037.22
  5. Step 5: Solve for x
    x = 350,978,833,037.22/677,309.54
  6. Step 6: Final answer
    x = 518,195.61

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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.