Home / 739,450.59-1,020,441.81-399,918.84

Finding the Fourth Proportional to 739,450.59, 1,020,441.81 and 399,918.84

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Solution

The fourth proportional to 739,450.59, 1,020,441.81 and 399,918.84 is: 551,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,450.59 : 1,020,441.81 = 399,918.84 : x
  2. Step 2: Convert to fraction form
    739,450.59/1,020,441.81 = 399,918.84/x
  3. Step 3: Cross multiply
    739,450.59x = 1,020,441.81 × 399,918.84
  4. Step 4: Simplify right side
    739,450.59x = 408,093,904,942.70
  5. Step 5: Solve for x
    x = 408,093,904,942.70/739,450.59
  6. Step 6: Final answer
    x = 551,888.00

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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.