Home / 830,455.70-1,245,683.55-788,983.70

Finding the Fourth Proportional to 830,455.70, 1,245,683.55 and 788,983.70

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Solution

The fourth proportional to 830,455.70, 1,245,683.55 and 788,983.70 is: 1,183,475.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,455.70 : 1,245,683.55 = 788,983.70 : x
  2. Step 2: Convert to fraction form
    830,455.70/1,245,683.55 = 788,983.70/x
  3. Step 3: Cross multiply
    830,455.70x = 1,245,683.55 × 788,983.70
  4. Step 4: Simplify right side
    830,455.70x = 982,824,016,308.14
  5. Step 5: Solve for x
    x = 982,824,016,308.14/830,455.70
  6. Step 6: Final answer
    x = 1,183,475.55

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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.