Home / 729,100.60-1,006,249.70-423,111.28

Finding the Fourth Proportional to 729,100.60, 1,006,249.70 and 423,111.28

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Solution

The fourth proportional to 729,100.60, 1,006,249.70 and 423,111.28 is: 583,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,100.60 : 1,006,249.70 = 423,111.28 : x
  2. Step 2: Convert to fraction form
    729,100.60/1,006,249.70 = 423,111.28/x
  3. Step 3: Cross multiply
    729,100.60x = 1,006,249.70 × 423,111.28
  4. Step 4: Simplify right side
    729,100.60x = 425,755,598,566.62
  5. Step 5: Solve for x
    x = 425,755,598,566.62/729,100.60
  6. Step 6: Final answer
    x = 583,946.30

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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.