Home / 1,423,825.12-2,135,983.92-477,287.20

Finding the Fourth Proportional to 1,423,825.12, 2,135,983.92 and 477,287.20

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Solution

The fourth proportional to 1,423,825.12, 2,135,983.92 and 477,287.20 is: 716,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,825.12 : 2,135,983.92 = 477,287.20 : x
  2. Step 2: Convert to fraction form
    1,423,825.12/2,135,983.92 = 477,287.20/x
  3. Step 3: Cross multiply
    1,423,825.12x = 2,135,983.92 × 477,287.20
  4. Step 4: Simplify right side
    1,423,825.12x = 1,019,477,784,421.82
  5. Step 5: Solve for x
    x = 1,019,477,784,421.82/1,423,825.12
  6. Step 6: Final answer
    x = 716,013.34

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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.