Home / 2,129,506.80-2,940,045.84-1,355,574.48

Finding the Fourth Proportional to 2,129,506.80, 2,940,045.84 and 1,355,574.48

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Solution

The fourth proportional to 2,129,506.80, 2,940,045.84 and 1,355,574.48 is: 1,871,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,506.80 : 2,940,045.84 = 1,355,574.48 : x
  2. Step 2: Convert to fraction form
    2,129,506.80/2,940,045.84 = 1,355,574.48/x
  3. Step 3: Cross multiply
    2,129,506.80x = 2,940,045.84 × 1,355,574.48
  4. Step 4: Simplify right side
    2,129,506.80x = 3,985,451,110,734.16
  5. Step 5: Solve for x
    x = 3,985,451,110,734.16/2,129,506.80
  6. Step 6: Final answer
    x = 1,871,537.16

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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.