Home / 826,448.30-1,239,940.29-405,428.93

Finding the Fourth Proportional to 826,448.30, 1,239,940.29 and 405,428.93

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Solution

The fourth proportional to 826,448.30, 1,239,940.29 and 405,428.93 is: 608,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,448.30 : 1,239,940.29 = 405,428.93 : x
  2. Step 2: Convert to fraction form
    826,448.30/1,239,940.29 = 405,428.93/x
  3. Step 3: Cross multiply
    826,448.30x = 1,239,940.29 × 405,428.93
  4. Step 4: Simplify right side
    826,448.30x = 502,707,665,038.59
  5. Step 5: Solve for x
    x = 502,707,665,038.59/826,448.30
  6. Step 6: Final answer
    x = 608,274.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.