Home / 1,218,905.40-1,828,649.70-587,299.80

Finding the Fourth Proportional to 1,218,905.40, 1,828,649.70 and 587,299.80

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Solution

The fourth proportional to 1,218,905.40, 1,828,649.70 and 587,299.80 is: 881,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,905.40 : 1,828,649.70 = 587,299.80 : x
  2. Step 2: Convert to fraction form
    1,218,905.40/1,828,649.70 = 587,299.80/x
  3. Step 3: Cross multiply
    1,218,905.40x = 1,828,649.70 × 587,299.80
  4. Step 4: Simplify right side
    1,218,905.40x = 1,073,965,603,080.06
  5. Step 5: Solve for x
    x = 1,073,965,603,080.06/1,218,905.40
  6. Step 6: Final answer
    x = 881,090.20

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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.