Home / 945,515.20-1,418,467.20-314,881.60

Finding the Fourth Proportional to 945,515.20, 1,418,467.20 and 314,881.60

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Solution

The fourth proportional to 945,515.20, 1,418,467.20 and 314,881.60 is: 472,387.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,515.20 : 1,418,467.20 = 314,881.60 : x
  2. Step 2: Convert to fraction form
    945,515.20/1,418,467.20 = 314,881.60/x
  3. Step 3: Cross multiply
    945,515.20x = 1,418,467.20 × 314,881.60
  4. Step 4: Simplify right side
    945,515.20x = 446,649,221,483.52
  5. Step 5: Solve for x
    x = 446,649,221,483.52/945,515.20
  6. Step 6: Final answer
    x = 472,387.14

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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.