Home / 579,803.43-800,127.20-325,160.09

Finding the Fourth Proportional to 579,803.43, 800,127.20 and 325,160.09

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Solution

The fourth proportional to 579,803.43, 800,127.20 and 325,160.09 is: 448,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,803.43 : 800,127.20 = 325,160.09 : x
  2. Step 2: Convert to fraction form
    579,803.43/800,127.20 = 325,160.09/x
  3. Step 3: Cross multiply
    579,803.43x = 800,127.20 × 325,160.09
  4. Step 4: Simplify right side
    579,803.43x = 260,169,426,737.01
  5. Step 5: Solve for x
    x = 260,169,426,737.01/579,803.43
  6. Step 6: Final answer
    x = 448,720.05

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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.