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Finding the Fourth Proportional to 966,728.60, 1,449,401.70 and 433,813.40

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Solution

The fourth proportional to 966,728.60, 1,449,401.70 and 433,813.40 is: 650,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,728.60 : 1,449,401.70 = 433,813.40 : x
  2. Step 2: Convert to fraction form
    966,728.60/1,449,401.70 = 433,813.40/x
  3. Step 3: Cross multiply
    966,728.60x = 1,449,401.70 × 433,813.40
  4. Step 4: Simplify right side
    966,728.60x = 628,769,879,442.78
  5. Step 5: Solve for x
    x = 628,769,879,442.78/966,728.60
  6. Step 6: Final answer
    x = 650,409.93

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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.