Home / 764,139.72-1,054,444.13-419,971.84

Finding the Fourth Proportional to 764,139.72, 1,054,444.13 and 419,971.84

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Solution

The fourth proportional to 764,139.72, 1,054,444.13 and 419,971.84 is: 579,523.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,139.72 : 1,054,444.13 = 419,971.84 : x
  2. Step 2: Convert to fraction form
    764,139.72/1,054,444.13 = 419,971.84/x
  3. Step 3: Cross multiply
    764,139.72x = 1,054,444.13 × 419,971.84
  4. Step 4: Simplify right side
    764,139.72x = 442,836,838,292.22
  5. Step 5: Solve for x
    x = 442,836,838,292.22/764,139.72
  6. Step 6: Final answer
    x = 579,523.38

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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.