Home / 1,919,028.16-2,878,492.51-781,788.51

Finding the Fourth Proportional to 1,919,028.16, 2,878,492.51 and 781,788.51

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Solution

The fourth proportional to 1,919,028.16, 2,878,492.51 and 781,788.51 is: 1,172,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,028.16 : 2,878,492.51 = 781,788.51 : x
  2. Step 2: Convert to fraction form
    1,919,028.16/2,878,492.51 = 781,788.51/x
  3. Step 3: Cross multiply
    1,919,028.16x = 2,878,492.51 × 781,788.51
  4. Step 4: Simplify right side
    1,919,028.16x = 2,250,372,371,416.30
  5. Step 5: Solve for x
    x = 2,250,372,371,416.30/1,919,028.16
  6. Step 6: Final answer
    x = 1,172,662.51

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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.