Home / 739,930.05-1,021,106.16-400,398.30

Finding the Fourth Proportional to 739,930.05, 1,021,106.16 and 400,398.30

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Solution

The fourth proportional to 739,930.05, 1,021,106.16 and 400,398.30 is: 552,551.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,930.05 : 1,021,106.16 = 400,398.30 : x
  2. Step 2: Convert to fraction form
    739,930.05/1,021,106.16 = 400,398.30/x
  3. Step 3: Cross multiply
    739,930.05x = 1,021,106.16 × 400,398.30
  4. Step 4: Simplify right side
    739,930.05x = 408,849,170,583.53
  5. Step 5: Solve for x
    x = 408,849,170,583.53/739,930.05
  6. Step 6: Final answer
    x = 552,551.11

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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.