Home / 745,148.45-1,117,095.73-324,107.21

Finding the Fourth Proportional to 745,148.45, 1,117,095.73 and 324,107.21

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Solution

The fourth proportional to 745,148.45, 1,117,095.73 and 324,107.21 is: 485,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,148.45 : 1,117,095.73 = 324,107.21 : x
  2. Step 2: Convert to fraction form
    745,148.45/1,117,095.73 = 324,107.21/x
  3. Step 3: Cross multiply
    745,148.45x = 1,117,095.73 × 324,107.21
  4. Step 4: Simplify right side
    745,148.45x = 362,058,780,353.21
  5. Step 5: Solve for x
    x = 362,058,780,353.21/745,148.45
  6. Step 6: Final answer
    x = 485,888.12

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1.5x scale

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.