Home / 1,401,143.80-2,101,715.70-1,339,713.40

Finding the Fourth Proportional to 1,401,143.80, 2,101,715.70 and 1,339,713.40

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Solution

The fourth proportional to 1,401,143.80, 2,101,715.70 and 1,339,713.40 is: 2,009,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,143.80 : 2,101,715.70 = 1,339,713.40 : x
  2. Step 2: Convert to fraction form
    1,401,143.80/2,101,715.70 = 1,339,713.40/x
  3. Step 3: Cross multiply
    1,401,143.80x = 2,101,715.70 × 1,339,713.40
  4. Step 4: Simplify right side
    1,401,143.80x = 2,815,696,686,280.38
  5. Step 5: Solve for x
    x = 2,815,696,686,280.38/1,401,143.80
  6. Step 6: Final answer
    x = 2,009,570.10

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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.