Home / 739,959.38-1,021,143.94-400,427.63

Finding the Fourth Proportional to 739,959.38, 1,021,143.94 and 400,427.63

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Solution

The fourth proportional to 739,959.38, 1,021,143.94 and 400,427.63 is: 552,590.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,959.38 : 1,021,143.94 = 400,427.63 : x
  2. Step 2: Convert to fraction form
    739,959.38/1,021,143.94 = 400,427.63/x
  3. Step 3: Cross multiply
    739,959.38x = 1,021,143.94 × 400,427.63
  4. Step 4: Simplify right side
    739,959.38x = 408,894,242,427.08
  5. Step 5: Solve for x
    x = 408,894,242,427.08/739,959.38
  6. Step 6: Final answer
    x = 552,590.12

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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.