Home / 1,189,403.04-1,641,391.92-645,545.34

Finding the Fourth Proportional to 1,189,403.04, 1,641,391.92 and 645,545.34

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Solution

The fourth proportional to 1,189,403.04, 1,641,391.92 and 645,545.34 is: 890,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,403.04 : 1,641,391.92 = 645,545.34 : x
  2. Step 2: Convert to fraction form
    1,189,403.04/1,641,391.92 = 645,545.34/x
  3. Step 3: Cross multiply
    1,189,403.04x = 1,641,391.92 × 645,545.34
  4. Step 4: Simplify right side
    1,189,403.04x = 1,059,592,905,069.65
  5. Step 5: Solve for x
    x = 1,059,592,905,069.65/1,189,403.04
  6. Step 6: Final answer
    x = 890,861.10

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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.