Home / 738,311.36-1,018,879.20-436,502.72

Finding the Fourth Proportional to 738,311.36, 1,018,879.20 and 436,502.72

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Solution

The fourth proportional to 738,311.36, 1,018,879.20 and 436,502.72 is: 602,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,311.36 : 1,018,879.20 = 436,502.72 : x
  2. Step 2: Convert to fraction form
    738,311.36/1,018,879.20 = 436,502.72/x
  3. Step 3: Cross multiply
    738,311.36x = 1,018,879.20 × 436,502.72
  4. Step 4: Simplify right side
    738,311.36x = 444,743,542,151.42
  5. Step 5: Solve for x
    x = 444,743,542,151.42/738,311.36
  6. Step 6: Final answer
    x = 602,379.38

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Double scale
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1.5x scale

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.