Home / 739,814.38-1,020,943.78-400,282.63

Finding the Fourth Proportional to 739,814.38, 1,020,943.78 and 400,282.63

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Solution

The fourth proportional to 739,814.38, 1,020,943.78 and 400,282.63 is: 552,389.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,814.38 : 1,020,943.78 = 400,282.63 : x
  2. Step 2: Convert to fraction form
    739,814.38/1,020,943.78 = 400,282.63/x
  3. Step 3: Cross multiply
    739,814.38x = 1,020,943.78 × 400,282.63
  4. Step 4: Simplify right side
    739,814.38x = 408,666,057,787.48
  5. Step 5: Solve for x
    x = 408,666,057,787.48/739,814.38
  6. Step 6: Final answer
    x = 552,389.99

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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.