Home / 818,997.96-1,130,913.72-513,585.84

Finding the Fourth Proportional to 818,997.96, 1,130,913.72 and 513,585.84

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Solution

The fourth proportional to 818,997.96, 1,130,913.72 and 513,585.84 is: 709,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,997.96 : 1,130,913.72 = 513,585.84 : x
  2. Step 2: Convert to fraction form
    818,997.96/1,130,913.72 = 513,585.84/x
  3. Step 3: Cross multiply
    818,997.96x = 1,130,913.72 × 513,585.84
  4. Step 4: Simplify right side
    818,997.96x = 580,821,272,853.73
  5. Step 5: Solve for x
    x = 580,821,272,853.73/818,997.96
  6. Step 6: Final answer
    x = 709,185.25

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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.