Home / 420,029.40-579,897.54-259,104.36

Finding the Fourth Proportional to 420,029.40, 579,897.54 and 259,104.36

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Solution

The fourth proportional to 420,029.40, 579,897.54 and 259,104.36 is: 357,722.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,029.40 : 579,897.54 = 259,104.36 : x
  2. Step 2: Convert to fraction form
    420,029.40/579,897.54 = 259,104.36/x
  3. Step 3: Cross multiply
    420,029.40x = 579,897.54 × 259,104.36
  4. Step 4: Simplify right side
    420,029.40x = 150,253,980,967.27
  5. Step 5: Solve for x
    x = 150,253,980,967.27/420,029.40
  6. Step 6: Final answer
    x = 357,722.53

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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.