Home / 1,189,501.18-1,641,513.30-645,637.08

Finding the Fourth Proportional to 1,189,501.18, 1,641,513.30 and 645,637.08

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Solution

The fourth proportional to 1,189,501.18, 1,641,513.30 and 645,637.08 is: 890,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,501.18 : 1,641,513.30 = 645,637.08 : x
  2. Step 2: Convert to fraction form
    1,189,501.18/1,641,513.30 = 645,637.08/x
  3. Step 3: Cross multiply
    1,189,501.18x = 1,641,513.30 × 645,637.08
  4. Step 4: Simplify right side
    1,189,501.18x = 1,059,821,856,720.65
  5. Step 5: Solve for x
    x = 1,059,821,856,720.65/1,189,501.18
  6. Step 6: Final answer
    x = 890,980.08

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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.