Home / 739,453.50-1,020,445.83-399,921.75

Finding the Fourth Proportional to 739,453.50, 1,020,445.83 and 399,921.75

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Solution

The fourth proportional to 739,453.50, 1,020,445.83 and 399,921.75 is: 551,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,453.50 : 1,020,445.83 = 399,921.75 : x
  2. Step 2: Convert to fraction form
    739,453.50/1,020,445.83 = 399,921.75/x
  3. Step 3: Cross multiply
    739,453.50x = 1,020,445.83 × 399,921.75
  4. Step 4: Simplify right side
    739,453.50x = 408,098,482,113.80
  5. Step 5: Solve for x
    x = 408,098,482,113.80/739,453.50
  6. Step 6: Final answer
    x = 551,892.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.