Home / 930,903.70-1,396,355.55-830,520.40

Finding the Fourth Proportional to 930,903.70, 1,396,355.55 and 830,520.40

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Solution

The fourth proportional to 930,903.70, 1,396,355.55 and 830,520.40 is: 1,245,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,903.70 : 1,396,355.55 = 830,520.40 : x
  2. Step 2: Convert to fraction form
    930,903.70/1,396,355.55 = 830,520.40/x
  3. Step 3: Cross multiply
    930,903.70x = 1,396,355.55 × 830,520.40
  4. Step 4: Simplify right side
    930,903.70x = 1,159,701,769,928.22
  5. Step 5: Solve for x
    x = 1,159,701,769,928.22/930,903.70
  6. Step 6: Final answer
    x = 1,245,780.60

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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.