Home / 755,412.56-1,042,435.32-411,239.68

Finding the Fourth Proportional to 755,412.56, 1,042,435.32 and 411,239.68

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Solution

The fourth proportional to 755,412.56, 1,042,435.32 and 411,239.68 is: 567,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,412.56 : 1,042,435.32 = 411,239.68 : x
  2. Step 2: Convert to fraction form
    755,412.56/1,042,435.32 = 411,239.68/x
  3. Step 3: Cross multiply
    755,412.56x = 1,042,435.32 × 411,239.68
  4. Step 4: Simplify right side
    755,412.56x = 428,690,771,446.18
  5. Step 5: Solve for x
    x = 428,690,771,446.18/755,412.56
  6. Step 6: Final answer
    x = 567,492.25

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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.