Home / 779,603.10-1,076,884.78-627,215.36

Finding the Fourth Proportional to 779,603.10, 1,076,884.78 and 627,215.36

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Solution

The fourth proportional to 779,603.10, 1,076,884.78 and 627,215.36 is: 866,387.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,603.10 : 1,076,884.78 = 627,215.36 : x
  2. Step 2: Convert to fraction form
    779,603.10/1,076,884.78 = 627,215.36/x
  3. Step 3: Cross multiply
    779,603.10x = 1,076,884.78 × 627,215.36
  4. Step 4: Simplify right side
    779,603.10x = 675,438,674,966.22
  5. Step 5: Solve for x
    x = 675,438,674,966.22/779,603.10
  6. Step 6: Final answer
    x = 866,387.88

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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.