Home / 1,340,803.85-1,850,329.53-728,955.18

Finding the Fourth Proportional to 1,340,803.85, 1,850,329.53 and 728,955.18

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Solution

The fourth proportional to 1,340,803.85, 1,850,329.53 and 728,955.18 is: 1,005,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,803.85 : 1,850,329.53 = 728,955.18 : x
  2. Step 2: Convert to fraction form
    1,340,803.85/1,850,329.53 = 728,955.18/x
  3. Step 3: Cross multiply
    1,340,803.85x = 1,850,329.53 × 728,955.18
  4. Step 4: Simplify right side
    1,340,803.85x = 1,348,807,295,600.47
  5. Step 5: Solve for x
    x = 1,348,807,295,600.47/1,340,803.85
  6. Step 6: Final answer
    x = 1,005,969.14

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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.