Home / 770,243.20-1,155,364.80-700,259.20

Finding the Fourth Proportional to 770,243.20, 1,155,364.80 and 700,259.20

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Solution

The fourth proportional to 770,243.20, 1,155,364.80 and 700,259.20 is: 1,050,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,243.20 : 1,155,364.80 = 700,259.20 : x
  2. Step 2: Convert to fraction form
    770,243.20/1,155,364.80 = 700,259.20/x
  3. Step 3: Cross multiply
    770,243.20x = 1,155,364.80 × 700,259.20
  4. Step 4: Simplify right side
    770,243.20x = 809,054,830,556.16
  5. Step 5: Solve for x
    x = 809,054,830,556.16/770,243.20
  6. Step 6: Final answer
    x = 1,050,388.80

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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.