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Finding the Fourth Proportional to 434,597.20, 651,895.80 and 418,850.80

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Solution

The fourth proportional to 434,597.20, 651,895.80 and 418,850.80 is: 628,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,597.20 : 651,895.80 = 418,850.80 : x
  2. Step 2: Convert to fraction form
    434,597.20/651,895.80 = 418,850.80/x
  3. Step 3: Cross multiply
    434,597.20x = 651,895.80 × 418,850.80
  4. Step 4: Simplify right side
    434,597.20x = 273,047,077,346.64
  5. Step 5: Solve for x
    x = 273,047,077,346.64/434,597.20
  6. Step 6: Final answer
    x = 628,276.20

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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.