Home / 434,520.20-651,197.10-309,715.40

Finding the Fourth Proportional to 434,520.20, 651,197.10 and 309,715.40

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Solution

The fourth proportional to 434,520.20, 651,197.10 and 309,715.40 is: 464,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,520.20 : 651,197.10 = 309,715.40 : x
  2. Step 2: Convert to fraction form
    434,520.20/651,197.10 = 309,715.40/x
  3. Step 3: Cross multiply
    434,520.20x = 651,197.10 × 309,715.40
  4. Step 4: Simplify right side
    434,520.20x = 201,685,770,305.34
  5. Step 5: Solve for x
    x = 201,685,770,305.34/434,520.20
  6. Step 6: Final answer
    x = 464,157.41

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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.