Home / 830,458.70-1,245,688.05-788,986.70

Finding the Fourth Proportional to 830,458.70, 1,245,688.05 and 788,986.70

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Solution

The fourth proportional to 830,458.70, 1,245,688.05 and 788,986.70 is: 1,183,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,458.70 : 1,245,688.05 = 788,986.70 : x
  2. Step 2: Convert to fraction form
    830,458.70/1,245,688.05 = 788,986.70/x
  3. Step 3: Cross multiply
    830,458.70x = 1,245,688.05 × 788,986.70
  4. Step 4: Simplify right side
    830,458.70x = 982,831,303,798.94
  5. Step 5: Solve for x
    x = 982,831,303,798.94/830,458.70
  6. Step 6: Final answer
    x = 1,183,480.05

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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.