Home / 722,495.10-1,083,742.65-439,059.90

Finding the Fourth Proportional to 722,495.10, 1,083,742.65 and 439,059.90

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Solution

The fourth proportional to 722,495.10, 1,083,742.65 and 439,059.90 is: 658,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,495.10 : 1,083,742.65 = 439,059.90 : x
  2. Step 2: Convert to fraction form
    722,495.10/1,083,742.65 = 439,059.90/x
  3. Step 3: Cross multiply
    722,495.10x = 1,083,742.65 × 439,059.90
  4. Step 4: Simplify right side
    722,495.10x = 475,827,939,534.74
  5. Step 5: Solve for x
    x = 475,827,939,534.74/722,495.10
  6. Step 6: Final answer
    x = 658,589.85

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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.