Home / 826,446.30-1,239,937.29-405,426.93

Finding the Fourth Proportional to 826,446.30, 1,239,937.29 and 405,426.93

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Solution

The fourth proportional to 826,446.30, 1,239,937.29 and 405,426.93 is: 608,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,446.30 : 1,239,937.29 = 405,426.93 : x
  2. Step 2: Convert to fraction form
    826,446.30/1,239,937.29 = 405,426.93/x
  3. Step 3: Cross multiply
    826,446.30x = 1,239,937.29 × 405,426.93
  4. Step 4: Simplify right side
    826,446.30x = 502,703,968,877.22
  5. Step 5: Solve for x
    x = 502,703,968,877.22/826,446.30
  6. Step 6: Final answer
    x = 608,271.79

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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.