Home / 2,918,492.40-4,377,738.60-788,905.20

Finding the Fourth Proportional to 2,918,492.40, 4,377,738.60 and 788,905.20

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Solution

The fourth proportional to 2,918,492.40, 4,377,738.60 and 788,905.20 is: 1,183,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,492.40 : 4,377,738.60 = 788,905.20 : x
  2. Step 2: Convert to fraction form
    2,918,492.40/4,377,738.60 = 788,905.20/x
  3. Step 3: Cross multiply
    2,918,492.40x = 4,377,738.60 × 788,905.20
  4. Step 4: Simplify right side
    2,918,492.40x = 3,453,620,745,780.72
  5. Step 5: Solve for x
    x = 3,453,620,745,780.72/2,918,492.40
  6. Step 6: Final answer
    x = 1,183,357.80

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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.