Home / 1,330,693.60-1,996,040.40-489,071.20

Finding the Fourth Proportional to 1,330,693.60, 1,996,040.40 and 489,071.20

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Solution

The fourth proportional to 1,330,693.60, 1,996,040.40 and 489,071.20 is: 733,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,693.60 : 1,996,040.40 = 489,071.20 : x
  2. Step 2: Convert to fraction form
    1,330,693.60/1,996,040.40 = 489,071.20/x
  3. Step 3: Cross multiply
    1,330,693.60x = 1,996,040.40 × 489,071.20
  4. Step 4: Simplify right side
    1,330,693.60x = 976,205,873,676.48
  5. Step 5: Solve for x
    x = 976,205,873,676.48/1,330,693.60
  6. Step 6: Final answer
    x = 733,606.80

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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.