Home / 764,170.47-1,054,566.20-420,038.26

Finding the Fourth Proportional to 764,170.47, 1,054,566.20 and 420,038.26

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Solution

The fourth proportional to 764,170.47, 1,054,566.20 and 420,038.26 is: 579,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,170.47 : 1,054,566.20 = 420,038.26 : x
  2. Step 2: Convert to fraction form
    764,170.47/1,054,566.20 = 420,038.26/x
  3. Step 3: Cross multiply
    764,170.47x = 1,054,566.20 × 420,038.26
  4. Step 4: Simplify right side
    764,170.47x = 442,958,150,116.49
  5. Step 5: Solve for x
    x = 442,958,150,116.49/764,170.47
  6. Step 6: Final answer
    x = 579,658.82

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Double scale
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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.