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Finding the Fourth Proportional to 580,150.80, 800,443.80 and 376,209.90

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Solution

The fourth proportional to 580,150.80, 800,443.80 and 376,209.90 is: 519,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,150.80 : 800,443.80 = 376,209.90 : x
  2. Step 2: Convert to fraction form
    580,150.80/800,443.80 = 376,209.90/x
  3. Step 3: Cross multiply
    580,150.80x = 800,443.80 × 376,209.90
  4. Step 4: Simplify right side
    580,150.80x = 301,134,881,953.62
  5. Step 5: Solve for x
    x = 301,134,881,953.62/580,150.80
  6. Step 6: Final answer
    x = 519,063.12

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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.