Home / 818,975.10-1,130,186.70-456,391.02

Finding the Fourth Proportional to 818,975.10, 1,130,186.70 and 456,391.02

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Solution

The fourth proportional to 818,975.10, 1,130,186.70 and 456,391.02 is: 629,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,975.10 : 1,130,186.70 = 456,391.02 : x
  2. Step 2: Convert to fraction form
    818,975.10/1,130,186.70 = 456,391.02/x
  3. Step 3: Cross multiply
    818,975.10x = 1,130,186.70 × 456,391.02
  4. Step 4: Simplify right side
    818,975.10x = 515,807,060,803.43
  5. Step 5: Solve for x
    x = 515,807,060,803.43/818,975.10
  6. Step 6: Final answer
    x = 629,820.20

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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.