Home / 910,819.80-1,365,136.20-378,066.60

Finding the Fourth Proportional to 910,819.80, 1,365,136.20 and 378,066.60

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Solution

The fourth proportional to 910,819.80, 1,365,136.20 and 378,066.60 is: 566,646.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,819.80 : 1,365,136.20 = 378,066.60 : x
  2. Step 2: Convert to fraction form
    910,819.80/1,365,136.20 = 378,066.60/x
  3. Step 3: Cross multiply
    910,819.80x = 1,365,136.20 × 378,066.60
  4. Step 4: Simplify right side
    910,819.80x = 516,112,401,670.92
  5. Step 5: Solve for x
    x = 516,112,401,670.92/910,819.80
  6. Step 6: Final answer
    x = 566,646.01

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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.