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Finding the Fourth Proportional to 614,321.68, 920,286.94 and 347,274.40

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Solution

The fourth proportional to 614,321.68, 920,286.94 and 347,274.40 is: 520,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,321.68 : 920,286.94 = 347,274.40 : x
  2. Step 2: Convert to fraction form
    614,321.68/920,286.94 = 347,274.40/x
  3. Step 3: Cross multiply
    614,321.68x = 920,286.94 × 347,274.40
  4. Step 4: Simplify right side
    614,321.68x = 319,592,094,916.34
  5. Step 5: Solve for x
    x = 319,592,094,916.34/614,321.68
  6. Step 6: Final answer
    x = 520,235.74

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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.