Home / 1,396,421.10-2,094,631.65-686,302.20

Finding the Fourth Proportional to 1,396,421.10, 2,094,631.65 and 686,302.20

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Solution

The fourth proportional to 1,396,421.10, 2,094,631.65 and 686,302.20 is: 1,029,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,421.10 : 2,094,631.65 = 686,302.20 : x
  2. Step 2: Convert to fraction form
    1,396,421.10/2,094,631.65 = 686,302.20/x
  3. Step 3: Cross multiply
    1,396,421.10x = 2,094,631.65 × 686,302.20
  4. Step 4: Simplify right side
    1,396,421.10x = 1,437,550,309,584.63
  5. Step 5: Solve for x
    x = 1,437,550,309,584.63/1,396,421.10
  6. Step 6: Final answer
    x = 1,029,453.30

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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.