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Finding the Fourth Proportional to 967,805.54, 1,335,602.49 and 538,103.78

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Solution

The fourth proportional to 967,805.54, 1,335,602.49 and 538,103.78 is: 742,600.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,805.54 : 1,335,602.49 = 538,103.78 : x
  2. Step 2: Convert to fraction form
    967,805.54/1,335,602.49 = 538,103.78/x
  3. Step 3: Cross multiply
    967,805.54x = 1,335,602.49 × 538,103.78
  4. Step 4: Simplify right side
    967,805.54x = 718,692,748,446.41
  5. Step 5: Solve for x
    x = 718,692,748,446.41/967,805.54
  6. Step 6: Final answer
    x = 742,600.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.