Home / 2,197,056.40-3,289,133.40-1,638,566.80

Finding the Fourth Proportional to 2,197,056.40, 3,289,133.40 and 1,638,566.80

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Solution

The fourth proportional to 2,197,056.40, 3,289,133.40 and 1,638,566.80 is: 2,453,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197,056.40 : 3,289,133.40 = 1,638,566.80 : x
  2. Step 2: Convert to fraction form
    2,197,056.40/3,289,133.40 = 1,638,566.80/x
  3. Step 3: Cross multiply
    2,197,056.40x = 3,289,133.40 × 1,638,566.80
  4. Step 4: Simplify right side
    2,197,056.40x = 5,389,464,790,011.12
  5. Step 5: Solve for x
    x = 5,389,464,790,011.12/2,197,056.40
  6. Step 6: Final answer
    x = 2,453,038.89

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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.