Home / 998,855.90-1,378,491.51-563,312.22

Finding the Fourth Proportional to 998,855.90, 1,378,491.51 and 563,312.22

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Solution

The fourth proportional to 998,855.90, 1,378,491.51 and 563,312.22 is: 777,410.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,855.90 : 1,378,491.51 = 563,312.22 : x
  2. Step 2: Convert to fraction form
    998,855.90/1,378,491.51 = 563,312.22/x
  3. Step 3: Cross multiply
    998,855.90x = 1,378,491.51 × 563,312.22
  4. Step 4: Simplify right side
    998,855.90x = 776,521,112,749.25
  5. Step 5: Solve for x
    x = 776,521,112,749.25/998,855.90
  6. Step 6: Final answer
    x = 777,410.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.