Home / 830,047.20-1,245,070.80-711,949.20

Finding the Fourth Proportional to 830,047.20, 1,245,070.80 and 711,949.20

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Solution

The fourth proportional to 830,047.20, 1,245,070.80 and 711,949.20 is: 1,067,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,047.20 : 1,245,070.80 = 711,949.20 : x
  2. Step 2: Convert to fraction form
    830,047.20/1,245,070.80 = 711,949.20/x
  3. Step 3: Cross multiply
    830,047.20x = 1,245,070.80 × 711,949.20
  4. Step 4: Simplify right side
    830,047.20x = 886,427,160,003.36
  5. Step 5: Solve for x
    x = 886,427,160,003.36/830,047.20
  6. Step 6: Final answer
    x = 1,067,923.80

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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.