Home / 1,421,004.90-2,131,507.35-1,024,428.90

Finding the Fourth Proportional to 1,421,004.90, 2,131,507.35 and 1,024,428.90

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Solution

The fourth proportional to 1,421,004.90, 2,131,507.35 and 1,024,428.90 is: 1,536,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,004.90 : 2,131,507.35 = 1,024,428.90 : x
  2. Step 2: Convert to fraction form
    1,421,004.90/2,131,507.35 = 1,024,428.90/x
  3. Step 3: Cross multiply
    1,421,004.90x = 2,131,507.35 × 1,024,428.90
  4. Step 4: Simplify right side
    1,421,004.90x = 2,183,577,729,902.42
  5. Step 5: Solve for x
    x = 2,183,577,729,902.42/1,421,004.90
  6. Step 6: Final answer
    x = 1,536,643.35

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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.