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Finding the Fourth Proportional to 909,874.82, 1,364,762.99 and 278,790.46

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Solution

The fourth proportional to 909,874.82, 1,364,762.99 and 278,790.46 is: 418,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,874.82 : 1,364,762.99 = 278,790.46 : x
  2. Step 2: Convert to fraction form
    909,874.82/1,364,762.99 = 278,790.46/x
  3. Step 3: Cross multiply
    909,874.82x = 1,364,762.99 × 278,790.46
  4. Step 4: Simplify right side
    909,874.82x = 380,482,899,058.14
  5. Step 5: Solve for x
    x = 380,482,899,058.14/909,874.82
  6. Step 6: Final answer
    x = 418,170.60

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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.