Home / 1,401,142.80-2,101,714.20-1,339,712.40

Finding the Fourth Proportional to 1,401,142.80, 2,101,714.20 and 1,339,712.40

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Solution

The fourth proportional to 1,401,142.80, 2,101,714.20 and 1,339,712.40 is: 2,009,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,142.80 : 2,101,714.20 = 1,339,712.40 : x
  2. Step 2: Convert to fraction form
    1,401,142.80/2,101,714.20 = 1,339,712.40/x
  3. Step 3: Cross multiply
    1,401,142.80x = 2,101,714.20 × 1,339,712.40
  4. Step 4: Simplify right side
    1,401,142.80x = 2,815,692,574,996.08
  5. Step 5: Solve for x
    x = 2,815,692,574,996.08/1,401,142.80
  6. Step 6: Final answer
    x = 2,009,568.60

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1.5x scale

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.