Home / 502,874.08-693,908.08-288,001.36

Finding the Fourth Proportional to 502,874.08, 693,908.08 and 288,001.36

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Solution

The fourth proportional to 502,874.08, 693,908.08 and 288,001.36 is: 397,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,874.08 : 693,908.08 = 288,001.36 : x
  2. Step 2: Convert to fraction form
    502,874.08/693,908.08 = 288,001.36/x
  3. Step 3: Cross multiply
    502,874.08x = 693,908.08 × 288,001.36
  4. Step 4: Simplify right side
    502,874.08x = 199,846,470,754.99
  5. Step 5: Solve for x
    x = 199,846,470,754.99/502,874.08
  6. Step 6: Final answer
    x = 397,408.57

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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.