Home / 739,335.97-1,020,283.70-399,804.22

Finding the Fourth Proportional to 739,335.97, 1,020,283.70 and 399,804.22

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Solution

The fourth proportional to 739,335.97, 1,020,283.70 and 399,804.22 is: 551,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,335.97 : 1,020,283.70 = 399,804.22 : x
  2. Step 2: Convert to fraction form
    739,335.97/1,020,283.70 = 399,804.22/x
  3. Step 3: Cross multiply
    739,335.97x = 1,020,283.70 × 399,804.22
  4. Step 4: Simplify right side
    739,335.97x = 407,913,728,133.55
  5. Step 5: Solve for x
    x = 407,913,728,133.55/739,335.97
  6. Step 6: Final answer
    x = 551,729.85

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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.