Home / 764,150.05-1,054,537.98-420,017.80

Finding the Fourth Proportional to 764,150.05, 1,054,537.98 and 420,017.80

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Solution

The fourth proportional to 764,150.05, 1,054,537.98 and 420,017.80 is: 579,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,150.05 : 1,054,537.98 = 420,017.80 : x
  2. Step 2: Convert to fraction form
    764,150.05/1,054,537.98 = 420,017.80/x
  3. Step 3: Cross multiply
    764,150.05x = 1,054,537.98 × 420,017.80
  4. Step 4: Simplify right side
    764,150.05x = 442,924,717,103.35
  5. Step 5: Solve for x
    x = 442,924,717,103.35/764,150.05
  6. Step 6: Final answer
    x = 579,630.55

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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.