Home / 788,498.40-1,182,747.60-489,316.80

Finding the Fourth Proportional to 788,498.40, 1,182,747.60 and 489,316.80

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Solution

The fourth proportional to 788,498.40, 1,182,747.60 and 489,316.80 is: 733,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,498.40 : 1,182,747.60 = 489,316.80 : x
  2. Step 2: Convert to fraction form
    788,498.40/1,182,747.60 = 489,316.80/x
  3. Step 3: Cross multiply
    788,498.40x = 1,182,747.60 × 489,316.80
  4. Step 4: Simplify right side
    788,498.40x = 578,738,270,839.68
  5. Step 5: Solve for x
    x = 578,738,270,839.68/788,498.40
  6. Step 6: Final answer
    x = 733,975.20

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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.