Home / 758,539.60-1,137,809.40-489,101.20

Finding the Fourth Proportional to 758,539.60, 1,137,809.40 and 489,101.20

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Solution

The fourth proportional to 758,539.60, 1,137,809.40 and 489,101.20 is: 733,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,539.60 : 1,137,809.40 = 489,101.20 : x
  2. Step 2: Convert to fraction form
    758,539.60/1,137,809.40 = 489,101.20/x
  3. Step 3: Cross multiply
    758,539.60x = 1,137,809.40 × 489,101.20
  4. Step 4: Simplify right side
    758,539.60x = 556,503,942,911.28
  5. Step 5: Solve for x
    x = 556,503,942,911.28/758,539.60
  6. Step 6: Final answer
    x = 733,651.80

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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.