Home / 739,814.23-1,020,943.56-400,282.48

Finding the Fourth Proportional to 739,814.23, 1,020,943.56 and 400,282.48

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Solution

The fourth proportional to 739,814.23, 1,020,943.56 and 400,282.48 is: 552,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,814.23 : 1,020,943.56 = 400,282.48 : x
  2. Step 2: Convert to fraction form
    739,814.23/1,020,943.56 = 400,282.48/x
  3. Step 3: Cross multiply
    739,814.23x = 1,020,943.56 × 400,282.48
  4. Step 4: Simplify right side
    739,814.23x = 408,665,820,136.83
  5. Step 5: Solve for x
    x = 408,665,820,136.83/739,814.23
  6. Step 6: Final answer
    x = 552,389.78

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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.