Home / 2,657,457.40-3,985,667.70-859,905.40

Finding the Fourth Proportional to 2,657,457.40, 3,985,667.70 and 859,905.40

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Solution

The fourth proportional to 2,657,457.40, 3,985,667.70 and 859,905.40 is: 1,289,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,457.40 : 3,985,667.70 = 859,905.40 : x
  2. Step 2: Convert to fraction form
    2,657,457.40/3,985,667.70 = 859,905.40/x
  3. Step 3: Cross multiply
    2,657,457.40x = 3,985,667.70 × 859,905.40
  4. Step 4: Simplify right side
    2,657,457.40x = 3,427,297,177,835.58
  5. Step 5: Solve for x
    x = 3,427,297,177,835.58/2,657,457.40
  6. Step 6: Final answer
    x = 1,289,690.36

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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.