Home / 947,195.30-1,420,772.81-307,498.02

Finding the Fourth Proportional to 947,195.30, 1,420,772.81 and 307,498.02

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Solution

The fourth proportional to 947,195.30, 1,420,772.81 and 307,498.02 is: 461,240.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,195.30 : 1,420,772.81 = 307,498.02 : x
  2. Step 2: Convert to fraction form
    947,195.30/1,420,772.81 = 307,498.02/x
  3. Step 3: Cross multiply
    947,195.30x = 1,420,772.81 × 307,498.02
  4. Step 4: Simplify right side
    947,195.30x = 436,884,824,407.35
  5. Step 5: Solve for x
    x = 436,884,824,407.35/947,195.30
  6. Step 6: Final answer
    x = 461,240.49

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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.