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Finding the Fourth Proportional to 613,750.80, 919,485.72 and 333,503.76

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Solution

The fourth proportional to 613,750.80, 919,485.72 and 333,503.76 is: 499,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,750.80 : 919,485.72 = 333,503.76 : x
  2. Step 2: Convert to fraction form
    613,750.80/919,485.72 = 333,503.76/x
  3. Step 3: Cross multiply
    613,750.80x = 919,485.72 × 333,503.76
  4. Step 4: Simplify right side
    613,750.80x = 306,651,944,886.31
  5. Step 5: Solve for x
    x = 306,651,944,886.31/613,750.80
  6. Step 6: Final answer
    x = 499,635.92

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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.