Home / 729,423.60-1,093,357.80-279,970.80

Finding the Fourth Proportional to 729,423.60, 1,093,357.80 and 279,970.80

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Solution

The fourth proportional to 729,423.60, 1,093,357.80 and 279,970.80 is: 419,657.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,423.60 : 1,093,357.80 = 279,970.80 : x
  2. Step 2: Convert to fraction form
    729,423.60/1,093,357.80 = 279,970.80/x
  3. Step 3: Cross multiply
    729,423.60x = 1,093,357.80 × 279,970.80
  4. Step 4: Simplify right side
    729,423.60x = 306,108,257,952.24
  5. Step 5: Solve for x
    x = 306,108,257,952.24/729,423.60
  6. Step 6: Final answer
    x = 419,657.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.