Home / 722,493.60-1,083,740.40-439,058.40

Finding the Fourth Proportional to 722,493.60, 1,083,740.40 and 439,058.40

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Solution

The fourth proportional to 722,493.60, 1,083,740.40 and 439,058.40 is: 658,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,493.60 : 1,083,740.40 = 439,058.40 : x
  2. Step 2: Convert to fraction form
    722,493.60/1,083,740.40 = 439,058.40/x
  3. Step 3: Cross multiply
    722,493.60x = 1,083,740.40 × 439,058.40
  4. Step 4: Simplify right side
    722,493.60x = 475,825,326,039.36
  5. Step 5: Solve for x
    x = 475,825,326,039.36/722,493.60
  6. Step 6: Final answer
    x = 658,587.60

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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.