Home / 755,668.07-1,042,742.52-428,877.15

Finding the Fourth Proportional to 755,668.07, 1,042,742.52 and 428,877.15

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Solution

The fourth proportional to 755,668.07, 1,042,742.52 and 428,877.15 is: 591,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,668.07 : 1,042,742.52 = 428,877.15 : x
  2. Step 2: Convert to fraction form
    755,668.07/1,042,742.52 = 428,877.15/x
  3. Step 3: Cross multiply
    755,668.07x = 1,042,742.52 × 428,877.15
  4. Step 4: Simplify right side
    755,668.07x = 447,208,440,161.42
  5. Step 5: Solve for x
    x = 447,208,440,161.42/755,668.07
  6. Step 6: Final answer
    x = 591,805.40

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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.