Home / 818,556.37-1,129,641.82-455,980.13

Finding the Fourth Proportional to 818,556.37, 1,129,641.82 and 455,980.13

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Solution

The fourth proportional to 818,556.37, 1,129,641.82 and 455,980.13 is: 629,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,556.37 : 1,129,641.82 = 455,980.13 : x
  2. Step 2: Convert to fraction form
    818,556.37/1,129,641.82 = 455,980.13/x
  3. Step 3: Cross multiply
    818,556.37x = 1,129,641.82 × 455,980.13
  4. Step 4: Simplify right side
    818,556.37x = 515,094,223,937.04
  5. Step 5: Solve for x
    x = 515,094,223,937.04/818,556.37
  6. Step 6: Final answer
    x = 629,271.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.