Home / 1,405,913.20-2,108,869.80-1,029,900.40

Finding the Fourth Proportional to 1,405,913.20, 2,108,869.80 and 1,029,900.40

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Solution

The fourth proportional to 1,405,913.20, 2,108,869.80 and 1,029,900.40 is: 1,544,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,913.20 : 2,108,869.80 = 1,029,900.40 : x
  2. Step 2: Convert to fraction form
    1,405,913.20/2,108,869.80 = 1,029,900.40/x
  3. Step 3: Cross multiply
    1,405,913.20x = 2,108,869.80 × 1,029,900.40
  4. Step 4: Simplify right side
    1,405,913.20x = 2,171,925,850,567.92
  5. Step 5: Solve for x
    x = 2,171,925,850,567.92/1,405,913.20
  6. Step 6: Final answer
    x = 1,544,850.60

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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.