Home / 729,601.83-1,006,860.48-402,936.87

Finding the Fourth Proportional to 729,601.83, 1,006,860.48 and 402,936.87

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Solution

The fourth proportional to 729,601.83, 1,006,860.48 and 402,936.87 is: 556,058.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,601.83 : 1,006,860.48 = 402,936.87 : x
  2. Step 2: Convert to fraction form
    729,601.83/1,006,860.48 = 402,936.87/x
  3. Step 3: Cross multiply
    729,601.83x = 1,006,860.48 × 402,936.87
  4. Step 4: Simplify right side
    729,601.83x = 405,701,208,826.88
  5. Step 5: Solve for x
    x = 405,701,208,826.88/729,601.83
  6. Step 6: Final answer
    x = 556,058.38

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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.