Home / 909,621.38-1,364,497.68-278,453.18

Finding the Fourth Proportional to 909,621.38, 1,364,497.68 and 278,453.18

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Solution

The fourth proportional to 909,621.38, 1,364,497.68 and 278,453.18 is: 417,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,621.38 : 1,364,497.68 = 278,453.18 : x
  2. Step 2: Convert to fraction form
    909,621.38/1,364,497.68 = 278,453.18/x
  3. Step 3: Cross multiply
    909,621.38x = 1,364,497.68 × 278,453.18
  4. Step 4: Simplify right side
    909,621.38x = 379,948,718,098.62
  5. Step 5: Solve for x
    x = 379,948,718,098.62/909,621.38
  6. Step 6: Final answer
    x = 417,699.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.