Home / 743,422.76-1,114,966.02-343,844.28

Finding the Fourth Proportional to 743,422.76, 1,114,966.02 and 343,844.28

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Solution

The fourth proportional to 743,422.76, 1,114,966.02 and 343,844.28 is: 515,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,422.76 : 1,114,966.02 = 343,844.28 : x
  2. Step 2: Convert to fraction form
    743,422.76/1,114,966.02 = 343,844.28/x
  3. Step 3: Cross multiply
    743,422.76x = 1,114,966.02 × 343,844.28
  4. Step 4: Simplify right side
    743,422.76x = 383,374,688,371.37
  5. Step 5: Solve for x
    x = 383,374,688,371.37/743,422.76
  6. Step 6: Final answer
    x = 515,688.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.