Home / 779,610.09-1,076,894.46-627,222.36

Finding the Fourth Proportional to 779,610.09, 1,076,894.46 and 627,222.36

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Solution

The fourth proportional to 779,610.09, 1,076,894.46 and 627,222.36 is: 866,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,610.09 : 1,076,894.46 = 627,222.36 : x
  2. Step 2: Convert to fraction form
    779,610.09/1,076,894.46 = 627,222.36/x
  3. Step 3: Cross multiply
    779,610.09x = 1,076,894.46 × 627,222.36
  4. Step 4: Simplify right side
    779,610.09x = 675,452,284,672.13
  5. Step 5: Solve for x
    x = 675,452,284,672.13/779,610.09
  6. Step 6: Final answer
    x = 866,397.57

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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.