Home / 502,819.74-693,890.55-288,029.34

Finding the Fourth Proportional to 502,819.74, 693,890.55 and 288,029.34

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Solution

The fourth proportional to 502,819.74, 693,890.55 and 288,029.34 is: 397,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,819.74 : 693,890.55 = 288,029.34 : x
  2. Step 2: Convert to fraction form
    502,819.74/693,890.55 = 288,029.34/x
  3. Step 3: Cross multiply
    502,819.74x = 693,890.55 × 288,029.34
  4. Step 4: Simplify right side
    502,819.74x = 199,860,837,148.74
  5. Step 5: Solve for x
    x = 199,860,837,148.74/502,819.74
  6. Step 6: Final answer
    x = 397,480.09

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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.