Home / 616,629.12-851,085.45-374,860.50

Finding the Fourth Proportional to 616,629.12, 851,085.45 and 374,860.50

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Solution

The fourth proportional to 616,629.12, 851,085.45 and 374,860.50 is: 517,390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,629.12 : 851,085.45 = 374,860.50 : x
  2. Step 2: Convert to fraction form
    616,629.12/851,085.45 = 374,860.50/x
  3. Step 3: Cross multiply
    616,629.12x = 851,085.45 × 374,860.50
  4. Step 4: Simplify right side
    616,629.12x = 319,038,317,329.73
  5. Step 5: Solve for x
    x = 319,038,317,329.73/616,629.12
  6. Step 6: Final answer
    x = 517,390.94

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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.