Home / 1,643,120.95-2,464,308.81-743,969.11

Finding the Fourth Proportional to 1,643,120.95, 2,464,308.81 and 743,969.11

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Solution

The fourth proportional to 1,643,120.95, 2,464,308.81 and 743,969.11 is: 1,115,784.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,120.95 : 2,464,308.81 = 743,969.11 : x
  2. Step 2: Convert to fraction form
    1,643,120.95/2,464,308.81 = 743,969.11/x
  3. Step 3: Cross multiply
    1,643,120.95x = 2,464,308.81 × 743,969.11
  4. Step 4: Simplify right side
    1,643,120.95x = 1,833,369,632,140.86
  5. Step 5: Solve for x
    x = 1,833,369,632,140.86/1,643,120.95
  6. Step 6: Final answer
    x = 1,115,784.95

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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.