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Finding the Fourth Proportional to 434,265.30, 650,015.55 and 309,849.30

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Solution

The fourth proportional to 434,265.30, 650,015.55 and 309,849.30 is: 463,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,265.30 : 650,015.55 = 309,849.30 : x
  2. Step 2: Convert to fraction form
    434,265.30/650,015.55 = 309,849.30/x
  3. Step 3: Cross multiply
    434,265.30x = 650,015.55 × 309,849.30
  4. Step 4: Simplify right side
    434,265.30x = 201,406,863,156.62
  5. Step 5: Solve for x
    x = 201,406,863,156.62/434,265.30
  6. Step 6: Final answer
    x = 463,787.60

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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.