Home / 1,665,215.21-2,298,052.71-1,020,510.90

Finding the Fourth Proportional to 1,665,215.21, 2,298,052.71 and 1,020,510.90

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Solution

The fourth proportional to 1,665,215.21, 2,298,052.71 and 1,020,510.90 is: 1,408,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,215.21 : 2,298,052.71 = 1,020,510.90 : x
  2. Step 2: Convert to fraction form
    1,665,215.21/2,298,052.71 = 1,020,510.90/x
  3. Step 3: Cross multiply
    1,665,215.21x = 2,298,052.71 × 1,020,510.90
  4. Step 4: Simplify right side
    1,665,215.21x = 2,345,187,839,329.54
  5. Step 5: Solve for x
    x = 2,345,187,839,329.54/1,665,215.21
  6. Step 6: Final answer
    x = 1,408,339.19

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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.