Home / 764,725.14-1,146,339.56-315,824.25

Finding the Fourth Proportional to 764,725.14, 1,146,339.56 and 315,824.25

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Solution

The fourth proportional to 764,725.14, 1,146,339.56 and 315,824.25 is: 473,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,725.14 : 1,146,339.56 = 315,824.25 : x
  2. Step 2: Convert to fraction form
    764,725.14/1,146,339.56 = 315,824.25/x
  3. Step 3: Cross multiply
    764,725.14x = 1,146,339.56 × 315,824.25
  4. Step 4: Simplify right side
    764,725.14x = 362,041,830,203.21
  5. Step 5: Solve for x
    x = 362,041,830,203.21/764,725.14
  6. Step 6: Final answer
    x = 473,427.39

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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.