Home / 729,106.01-1,006,005.22-423,005.09

Finding the Fourth Proportional to 729,106.01, 1,006,005.22 and 423,005.09

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Solution

The fourth proportional to 729,106.01, 1,006,005.22 and 423,005.09 is: 583,653.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,106.01 : 1,006,005.22 = 423,005.09 : x
  2. Step 2: Convert to fraction form
    729,106.01/1,006,005.22 = 423,005.09/x
  3. Step 3: Cross multiply
    729,106.01x = 1,006,005.22 × 423,005.09
  4. Step 4: Simplify right side
    729,106.01x = 425,545,322,539.03
  5. Step 5: Solve for x
    x = 425,545,322,539.03/729,106.01
  6. Step 6: Final answer
    x = 583,653.57

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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.