Home / 1,980,828.60-2,971,242.90-1,854,857.40

Finding the Fourth Proportional to 1,980,828.60, 2,971,242.90 and 1,854,857.40

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Solution

The fourth proportional to 1,980,828.60, 2,971,242.90 and 1,854,857.40 is: 2,782,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,828.60 : 2,971,242.90 = 1,854,857.40 : x
  2. Step 2: Convert to fraction form
    1,980,828.60/2,971,242.90 = 1,854,857.40/x
  3. Step 3: Cross multiply
    1,980,828.60x = 2,971,242.90 × 1,854,857.40
  4. Step 4: Simplify right side
    1,980,828.60x = 5,511,231,880,262.46
  5. Step 5: Solve for x
    x = 5,511,231,880,262.46/1,980,828.60
  6. Step 6: Final answer
    x = 2,782,286.10

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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.