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Finding the Fourth Proportional to 448,120.72, 618,378.60 and 246,916.72

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Solution

The fourth proportional to 448,120.72, 618,378.60 and 246,916.72 is: 340,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,120.72 : 618,378.60 = 246,916.72 : x
  2. Step 2: Convert to fraction form
    448,120.72/618,378.60 = 246,916.72/x
  3. Step 3: Cross multiply
    448,120.72x = 618,378.60 × 246,916.72
  4. Step 4: Simplify right side
    448,120.72x = 152,688,015,630.19
  5. Step 5: Solve for x
    x = 152,688,015,630.19/448,120.72
  6. Step 6: Final answer
    x = 340,729.65

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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.