Home / 407,428.72-562,249.68-226,142.80

Finding the Fourth Proportional to 407,428.72, 562,249.68 and 226,142.80

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Solution

The fourth proportional to 407,428.72, 562,249.68 and 226,142.80 is: 312,075.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,428.72 : 562,249.68 = 226,142.80 : x
  2. Step 2: Convert to fraction form
    407,428.72/562,249.68 = 226,142.80/x
  3. Step 3: Cross multiply
    407,428.72x = 562,249.68 × 226,142.80
  4. Step 4: Simplify right side
    407,428.72x = 127,148,716,934.30
  5. Step 5: Solve for x
    x = 127,148,716,934.30/407,428.72
  6. Step 6: Final answer
    x = 312,075.98

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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.