Home / 1,300,682.70-1,948,071.60-668,858.40

Finding the Fourth Proportional to 1,300,682.70, 1,948,071.60 and 668,858.40

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Solution

The fourth proportional to 1,300,682.70, 1,948,071.60 and 668,858.40 is: 1,001,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,682.70 : 1,948,071.60 = 668,858.40 : x
  2. Step 2: Convert to fraction form
    1,300,682.70/1,948,071.60 = 668,858.40/x
  3. Step 3: Cross multiply
    1,300,682.70x = 1,948,071.60 × 668,858.40
  4. Step 4: Simplify right side
    1,300,682.70x = 1,302,984,053,461.44
  5. Step 5: Solve for x
    x = 1,302,984,053,461.44/1,300,682.70
  6. Step 6: Final answer
    x = 1,001,769.34

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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.