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Finding the Fourth Proportional to 492,941.40, 739,412.10 and 326,729.40

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Solution

The fourth proportional to 492,941.40, 739,412.10 and 326,729.40 is: 490,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,941.40 : 739,412.10 = 326,729.40 : x
  2. Step 2: Convert to fraction form
    492,941.40/739,412.10 = 326,729.40/x
  3. Step 3: Cross multiply
    492,941.40x = 739,412.10 × 326,729.40
  4. Step 4: Simplify right side
    492,941.40x = 241,587,671,785.74
  5. Step 5: Solve for x
    x = 241,587,671,785.74/492,941.40
  6. Step 6: Final answer
    x = 490,094.10

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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.