Home / 745,976.20-1,119,110.10-319,511.20

Finding the Fourth Proportional to 745,976.20, 1,119,110.10 and 319,511.20

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Solution

The fourth proportional to 745,976.20, 1,119,110.10 and 319,511.20 is: 479,329.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,976.20 : 1,119,110.10 = 319,511.20 : x
  2. Step 2: Convert to fraction form
    745,976.20/1,119,110.10 = 319,511.20/x
  3. Step 3: Cross multiply
    745,976.20x = 1,119,110.10 × 319,511.20
  4. Step 4: Simplify right side
    745,976.20x = 357,568,210,983.12
  5. Step 5: Solve for x
    x = 357,568,210,983.12/745,976.20
  6. Step 6: Final answer
    x = 479,329.25

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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.