Home / 729,285.48-1,006,464.42-407,058.48

Finding the Fourth Proportional to 729,285.48, 1,006,464.42 and 407,058.48

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Solution

The fourth proportional to 729,285.48, 1,006,464.42 and 407,058.48 is: 561,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,285.48 : 1,006,464.42 = 407,058.48 : x
  2. Step 2: Convert to fraction form
    729,285.48/1,006,464.42 = 407,058.48/x
  3. Step 3: Cross multiply
    729,285.48x = 1,006,464.42 × 407,058.48
  4. Step 4: Simplify right side
    729,285.48x = 409,689,876,979.28
  5. Step 5: Solve for x
    x = 409,689,876,979.28/729,285.48
  6. Step 6: Final answer
    x = 561,768.87

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1.5x scale

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.