Home / 764,378.07-1,146,705.01-314,853.59

Finding the Fourth Proportional to 764,378.07, 1,146,705.01 and 314,853.59

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Solution

The fourth proportional to 764,378.07, 1,146,705.01 and 314,853.59 is: 472,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,378.07 : 1,146,705.01 = 314,853.59 : x
  2. Step 2: Convert to fraction form
    764,378.07/1,146,705.01 = 314,853.59/x
  3. Step 3: Cross multiply
    764,378.07x = 1,146,705.01 × 314,853.59
  4. Step 4: Simplify right side
    764,378.07x = 361,044,182,548.83
  5. Step 5: Solve for x
    x = 361,044,182,548.83/764,378.07
  6. Step 6: Final answer
    x = 472,337.18

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Double scale
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Similar ratio
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1.5x scale

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.