Home / 739,338.59-1,020,287.27-399,806.84

Finding the Fourth Proportional to 739,338.59, 1,020,287.27 and 399,806.84

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Solution

The fourth proportional to 739,338.59, 1,020,287.27 and 399,806.84 is: 551,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,338.59 : 1,020,287.27 = 399,806.84 : x
  2. Step 2: Convert to fraction form
    739,338.59/1,020,287.27 = 399,806.84/x
  3. Step 3: Cross multiply
    739,338.59x = 1,020,287.27 × 399,806.84
  4. Step 4: Simplify right side
    739,338.59x = 407,917,829,310.93
  5. Step 5: Solve for x
    x = 407,917,829,310.93/739,338.59
  6. Step 6: Final answer
    x = 551,733.45

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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.