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Finding the Fourth Proportional to 2,994,764.80, 4,492,730.40 and 864,918.40

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Solution

The fourth proportional to 2,994,764.80, 4,492,730.40 and 864,918.40 is: 1,297,546.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,994,764.80 : 4,492,730.40 = 864,918.40 : x
  2. Step 2: Convert to fraction form
    2,994,764.80/4,492,730.40 = 864,918.40/x
  3. Step 3: Cross multiply
    2,994,764.80x = 4,492,730.40 × 864,918.40
  4. Step 4: Simplify right side
    2,994,764.80x = 3,885,845,189,199.36
  5. Step 5: Solve for x
    x = 3,885,845,189,199.36/2,994,764.80
  6. Step 6: Final answer
    x = 1,297,546.03

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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.