Home / 1,076,310-1,485,012.20-749,256.48

Finding the Fourth Proportional to 1,076,310, 1,485,012.20 and 749,256.48

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Solution

The fourth proportional to 1,076,310, 1,485,012.20 and 749,256.48 is: 1,033,768.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,310 : 1,485,012.20 = 749,256.48 : x
  2. Step 2: Convert to fraction form
    1,076,310/1,485,012.20 = 749,256.48/x
  3. Step 3: Cross multiply
    1,076,310x = 1,485,012.20 × 749,256.48
  4. Step 4: Simplify right side
    1,076,310x = 1,112,655,013,729.06
  5. Step 5: Solve for x
    x = 1,112,655,013,729.06/1,076,310
  6. Step 6: Final answer
    x = 1,033,768.17

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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.