Home / 717,317.57-1,076,225.44-318,238.57

Finding the Fourth Proportional to 717,317.57, 1,076,225.44 and 318,238.57

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Solution

The fourth proportional to 717,317.57, 1,076,225.44 and 318,238.57 is: 477,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,317.57 : 1,076,225.44 = 318,238.57 : x
  2. Step 2: Convert to fraction form
    717,317.57/1,076,225.44 = 318,238.57/x
  3. Step 3: Cross multiply
    717,317.57x = 1,076,225.44 × 318,238.57
  4. Step 4: Simplify right side
    717,317.57x = 342,496,445,023.22
  5. Step 5: Solve for x
    x = 342,496,445,023.22/717,317.57
  6. Step 6: Final answer
    x = 477,468.36

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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.