Home / 745,879.20-1,119,256.20-272,612.40

Finding the Fourth Proportional to 745,879.20, 1,119,256.20 and 272,612.40

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Solution

The fourth proportional to 745,879.20, 1,119,256.20 and 272,612.40 is: 409,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,879.20 : 1,119,256.20 = 272,612.40 : x
  2. Step 2: Convert to fraction form
    745,879.20/1,119,256.20 = 272,612.40/x
  3. Step 3: Cross multiply
    745,879.20x = 1,119,256.20 × 272,612.40
  4. Step 4: Simplify right side
    745,879.20x = 305,123,118,896.88
  5. Step 5: Solve for x
    x = 305,123,118,896.88/745,879.20
  6. Step 6: Final answer
    x = 409,078.47

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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.