Home / 725,533.72-1,086,490.50-458,488.60

Finding the Fourth Proportional to 725,533.72, 1,086,490.50 and 458,488.60

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Solution

The fourth proportional to 725,533.72, 1,086,490.50 and 458,488.60 is: 686,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,533.72 : 1,086,490.50 = 458,488.60 : x
  2. Step 2: Convert to fraction form
    725,533.72/1,086,490.50 = 458,488.60/x
  3. Step 3: Cross multiply
    725,533.72x = 1,086,490.50 × 458,488.60
  4. Step 4: Simplify right side
    725,533.72x = 498,143,508,258.30
  5. Step 5: Solve for x
    x = 498,143,508,258.30/725,533.72
  6. Step 6: Final answer
    x = 686,589.05

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1.5x scale

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.