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Finding the Fourth Proportional to 538,484.64, 742,954.20 and 347,606.64

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Solution

The fourth proportional to 538,484.64, 742,954.20 and 347,606.64 is: 479,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,484.64 : 742,954.20 = 347,606.64 : x
  2. Step 2: Convert to fraction form
    538,484.64/742,954.20 = 347,606.64/x
  3. Step 3: Cross multiply
    538,484.64x = 742,954.20 × 347,606.64
  4. Step 4: Simplify right side
    538,484.64x = 258,255,813,135.89
  5. Step 5: Solve for x
    x = 258,255,813,135.89/538,484.64
  6. Step 6: Final answer
    x = 479,597.36

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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.