Home / 739,450.69-1,020,441.96-399,918.94

Finding the Fourth Proportional to 739,450.69, 1,020,441.96 and 399,918.94

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Solution

The fourth proportional to 739,450.69, 1,020,441.96 and 399,918.94 is: 551,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,450.69 : 1,020,441.96 = 399,918.94 : x
  2. Step 2: Convert to fraction form
    739,450.69/1,020,441.96 = 399,918.94/x
  3. Step 3: Cross multiply
    739,450.69x = 1,020,441.96 × 399,918.94
  4. Step 4: Simplify right side
    739,450.69x = 408,094,066,974.72
  5. Step 5: Solve for x
    x = 408,094,066,974.72/739,450.69
  6. Step 6: Final answer
    x = 551,888.14

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Double scale
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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.