Home / 787,359.40-1,181,039.10-545,914.60

Finding the Fourth Proportional to 787,359.40, 1,181,039.10 and 545,914.60

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Solution

The fourth proportional to 787,359.40, 1,181,039.10 and 545,914.60 is: 818,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,359.40 : 1,181,039.10 = 545,914.60 : x
  2. Step 2: Convert to fraction form
    787,359.40/1,181,039.10 = 545,914.60/x
  3. Step 3: Cross multiply
    787,359.40x = 1,181,039.10 × 545,914.60
  4. Step 4: Simplify right side
    787,359.40x = 644,746,487,860.86
  5. Step 5: Solve for x
    x = 644,746,487,860.86/787,359.40
  6. Step 6: Final answer
    x = 818,871.90

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1.5x scale

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.