Home / 687,975.83-949,856.30-446,945.34

Finding the Fourth Proportional to 687,975.83, 949,856.30 and 446,945.34

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Solution

The fourth proportional to 687,975.83, 949,856.30 and 446,945.34 is: 617,076.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,975.83 : 949,856.30 = 446,945.34 : x
  2. Step 2: Convert to fraction form
    687,975.83/949,856.30 = 446,945.34/x
  3. Step 3: Cross multiply
    687,975.83x = 949,856.30 × 446,945.34
  4. Step 4: Simplify right side
    687,975.83x = 424,533,844,719.92
  5. Step 5: Solve for x
    x = 424,533,844,719.92/687,975.83
  6. Step 6: Final answer
    x = 617,076.69

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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.