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Finding the Fourth Proportional to 624,541.66, 936,672.34 and 287,258.28

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Solution

The fourth proportional to 624,541.66, 936,672.34 and 287,258.28 is: 430,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,541.66 : 936,672.34 = 287,258.28 : x
  2. Step 2: Convert to fraction form
    624,541.66/936,672.34 = 287,258.28/x
  3. Step 3: Cross multiply
    624,541.66x = 936,672.34 × 287,258.28
  4. Step 4: Simplify right side
    624,541.66x = 269,066,885,311.98
  5. Step 5: Solve for x
    x = 269,066,885,311.98/624,541.66
  6. Step 6: Final answer
    x = 430,822.96

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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.