Home / 1,125,103.80-1,687,655.70-451,289.10

Finding the Fourth Proportional to 1,125,103.80, 1,687,655.70 and 451,289.10

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Solution

The fourth proportional to 1,125,103.80, 1,687,655.70 and 451,289.10 is: 676,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,103.80 : 1,687,655.70 = 451,289.10 : x
  2. Step 2: Convert to fraction form
    1,125,103.80/1,687,655.70 = 451,289.10/x
  3. Step 3: Cross multiply
    1,125,103.80x = 1,687,655.70 × 451,289.10
  4. Step 4: Simplify right side
    1,125,103.80x = 761,620,621,962.87
  5. Step 5: Solve for x
    x = 761,620,621,962.87/1,125,103.80
  6. Step 6: Final answer
    x = 676,933.65

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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.