Home / 945,424.39-1,418,148.89-314,338.20

Finding the Fourth Proportional to 945,424.39, 1,418,148.89 and 314,338.20

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Solution

The fourth proportional to 945,424.39, 1,418,148.89 and 314,338.20 is: 471,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,424.39 : 1,418,148.89 = 314,338.20 : x
  2. Step 2: Convert to fraction form
    945,424.39/1,418,148.89 = 314,338.20/x
  3. Step 3: Cross multiply
    945,424.39x = 1,418,148.89 × 314,338.20
  4. Step 4: Simplify right side
    945,424.39x = 445,778,369,414.60
  5. Step 5: Solve for x
    x = 445,778,369,414.60/945,424.39
  6. Step 6: Final answer
    x = 471,511.39

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Double scale
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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.