Home / 1,421,714.40-2,128,424.40-1,380,242.40

Finding the Fourth Proportional to 1,421,714.40, 2,128,424.40 and 1,380,242.40

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Solution

The fourth proportional to 1,421,714.40, 2,128,424.40 and 1,380,242.40 is: 2,066,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,714.40 : 2,128,424.40 = 1,380,242.40 : x
  2. Step 2: Convert to fraction form
    1,421,714.40/2,128,424.40 = 1,380,242.40/x
  3. Step 3: Cross multiply
    1,421,714.40x = 2,128,424.40 × 1,380,242.40
  4. Step 4: Simplify right side
    1,421,714.40x = 2,937,741,602,074.56
  5. Step 5: Solve for x
    x = 2,937,741,602,074.56/1,421,714.40
  6. Step 6: Final answer
    x = 2,066,337.38

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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.