Home / 1,080,643.40-1,618,826.70-947,673.80

Finding the Fourth Proportional to 1,080,643.40, 1,618,826.70 and 947,673.80

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Solution

The fourth proportional to 1,080,643.40, 1,618,826.70 and 947,673.80 is: 1,419,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,643.40 : 1,618,826.70 = 947,673.80 : x
  2. Step 2: Convert to fraction form
    1,080,643.40/1,618,826.70 = 947,673.80/x
  3. Step 3: Cross multiply
    1,080,643.40x = 1,618,826.70 × 947,673.80
  4. Step 4: Simplify right side
    1,080,643.40x = 1,534,119,650,330.46
  5. Step 5: Solve for x
    x = 1,534,119,650,330.46/1,080,643.40
  6. Step 6: Final answer
    x = 1,419,635.42

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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.