Home / 1,980,491.61-2,970,749.72-700,820.51

Finding the Fourth Proportional to 1,980,491.61, 2,970,749.72 and 700,820.51

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Solution

The fourth proportional to 1,980,491.61, 2,970,749.72 and 700,820.51 is: 1,051,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,491.61 : 2,970,749.72 = 700,820.51 : x
  2. Step 2: Convert to fraction form
    1,980,491.61/2,970,749.72 = 700,820.51/x
  3. Step 3: Cross multiply
    1,980,491.61x = 2,970,749.72 × 700,820.51
  4. Step 4: Simplify right side
    1,980,491.61x = 2,081,962,320,751.06
  5. Step 5: Solve for x
    x = 2,081,962,320,751.06/1,980,491.61
  6. Step 6: Final answer
    x = 1,051,235.11

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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.