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Finding the Fourth Proportional to 503,420.20, 754,352.70 and 436,546.60

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Solution

The fourth proportional to 503,420.20, 754,352.70 and 436,546.60 is: 654,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,420.20 : 754,352.70 = 436,546.60 : x
  2. Step 2: Convert to fraction form
    503,420.20/754,352.70 = 436,546.60/x
  3. Step 3: Cross multiply
    503,420.20x = 754,352.70 × 436,546.60
  4. Step 4: Simplify right side
    503,420.20x = 329,310,106,385.82
  5. Step 5: Solve for x
    x = 329,310,106,385.82/503,420.20
  6. Step 6: Final answer
    x = 654,145.60

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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.