Home / 478,243.10-659,967.44-263,403.17

Finding the Fourth Proportional to 478,243.10, 659,967.44 and 263,403.17

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Solution

The fourth proportional to 478,243.10, 659,967.44 and 263,403.17 is: 363,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,243.10 : 659,967.44 = 263,403.17 : x
  2. Step 2: Convert to fraction form
    478,243.10/659,967.44 = 263,403.17/x
  3. Step 3: Cross multiply
    478,243.10x = 659,967.44 × 263,403.17
  4. Step 4: Simplify right side
    478,243.10x = 173,837,514,475.77
  5. Step 5: Solve for x
    x = 173,837,514,475.77/478,243.10
  6. Step 6: Final answer
    x = 363,491.94

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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.