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Finding the Fourth Proportional to 663,194.36, 994,012.30 and 307,459.64

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Solution

The fourth proportional to 663,194.36, 994,012.30 and 307,459.64 is: 460,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,194.36 : 994,012.30 = 307,459.64 : x
  2. Step 2: Convert to fraction form
    663,194.36/994,012.30 = 307,459.64/x
  3. Step 3: Cross multiply
    663,194.36x = 994,012.30 × 307,459.64
  4. Step 4: Simplify right side
    663,194.36x = 305,618,663,913.57
  5. Step 5: Solve for x
    x = 305,618,663,913.57/663,194.36
  6. Step 6: Final answer
    x = 460,828.20

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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.