Home / 755,615.71-1,040,975.65-525,778.28

Finding the Fourth Proportional to 755,615.71, 1,040,975.65 and 525,778.28

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Solution

The fourth proportional to 755,615.71, 1,040,975.65 and 525,778.28 is: 724,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,615.71 : 1,040,975.65 = 525,778.28 : x
  2. Step 2: Convert to fraction form
    755,615.71/1,040,975.65 = 525,778.28/x
  3. Step 3: Cross multiply
    755,615.71x = 1,040,975.65 × 525,778.28
  4. Step 4: Simplify right side
    755,615.71x = 547,322,386,778.88
  5. Step 5: Solve for x
    x = 547,322,386,778.88/755,615.71
  6. Step 6: Final answer
    x = 724,339.61

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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.