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Finding the Fourth Proportional to 608,434.80, 912,652.20 and 396,927.60

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Solution

The fourth proportional to 608,434.80, 912,652.20 and 396,927.60 is: 595,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,434.80 : 912,652.20 = 396,927.60 : x
  2. Step 2: Convert to fraction form
    608,434.80/912,652.20 = 396,927.60/x
  3. Step 3: Cross multiply
    608,434.80x = 912,652.20 × 396,927.60
  4. Step 4: Simplify right side
    608,434.80x = 362,256,847,380.72
  5. Step 5: Solve for x
    x = 362,256,847,380.72/608,434.80
  6. Step 6: Final answer
    x = 595,391.40

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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.