Home / 689,756.78-1,034,333.54-347,989.92

Finding the Fourth Proportional to 689,756.78, 1,034,333.54 and 347,989.92

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Solution

The fourth proportional to 689,756.78, 1,034,333.54 and 347,989.92 is: 521,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,756.78 : 1,034,333.54 = 347,989.92 : x
  2. Step 2: Convert to fraction form
    689,756.78/1,034,333.54 = 347,989.92/x
  3. Step 3: Cross multiply
    689,756.78x = 1,034,333.54 × 347,989.92
  4. Step 4: Simplify right side
    689,756.78x = 359,937,645,837.92
  5. Step 5: Solve for x
    x = 359,937,645,837.92/689,756.78
  6. Step 6: Final answer
    x = 521,832.70

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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.