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Finding the Fourth Proportional to 434,880.15, 651,690.67 and 299,805.57

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Solution

The fourth proportional to 434,880.15, 651,690.67 and 299,805.57 is: 449,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,880.15 : 651,690.67 = 299,805.57 : x
  2. Step 2: Convert to fraction form
    434,880.15/651,690.67 = 299,805.57/x
  3. Step 3: Cross multiply
    434,880.15x = 651,690.67 × 299,805.57
  4. Step 4: Simplify right side
    434,880.15x = 195,380,492,783.03
  5. Step 5: Solve for x
    x = 195,380,492,783.03/434,880.15
  6. Step 6: Final answer
    x = 449,274.34

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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.