Home / 1,686,549.60-2,328,130.80-1,143,429.12

Finding the Fourth Proportional to 1,686,549.60, 2,328,130.80 and 1,143,429.12

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Solution

The fourth proportional to 1,686,549.60, 2,328,130.80 and 1,143,429.12 is: 1,578,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,549.60 : 2,328,130.80 = 1,143,429.12 : x
  2. Step 2: Convert to fraction form
    1,686,549.60/2,328,130.80 = 1,143,429.12/x
  3. Step 3: Cross multiply
    1,686,549.60x = 2,328,130.80 × 1,143,429.12
  4. Step 4: Simplify right side
    1,686,549.60x = 2,662,052,551,888.90
  5. Step 5: Solve for x
    x = 2,662,052,551,888.90/1,686,549.60
  6. Step 6: Final answer
    x = 1,578,401.58

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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.