Home / 389,044.28-537,060.39-274,416.32

Finding the Fourth Proportional to 389,044.28, 537,060.39 and 274,416.32

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Solution

The fourth proportional to 389,044.28, 537,060.39 and 274,416.32 is: 378,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,044.28 : 537,060.39 = 274,416.32 : x
  2. Step 2: Convert to fraction form
    389,044.28/537,060.39 = 274,416.32/x
  3. Step 3: Cross multiply
    389,044.28x = 537,060.39 × 274,416.32
  4. Step 4: Simplify right side
    389,044.28x = 147,378,135,841.57
  5. Step 5: Solve for x
    x = 147,378,135,841.57/389,044.28
  6. Step 6: Final answer
    x = 378,820.98

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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.