Home / 1,189,465.31-1,641,463.23-645,600.94

Finding the Fourth Proportional to 1,189,465.31, 1,641,463.23 and 645,600.94

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Solution

The fourth proportional to 1,189,465.31, 1,641,463.23 and 645,600.94 is: 890,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,465.31 : 1,641,463.23 = 645,600.94 : x
  2. Step 2: Convert to fraction form
    1,189,465.31/1,641,463.23 = 645,600.94/x
  3. Step 3: Cross multiply
    1,189,465.31x = 1,641,463.23 × 645,600.94
  4. Step 4: Simplify right side
    1,189,465.31x = 1,059,730,204,263.44
  5. Step 5: Solve for x
    x = 1,059,730,204,263.44/1,189,465.31
  6. Step 6: Final answer
    x = 890,929.90

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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.