Home / 787,057.69-1,086,039.88-447,533.23

Finding the Fourth Proportional to 787,057.69, 1,086,039.88 and 447,533.23

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Solution

The fourth proportional to 787,057.69, 1,086,039.88 and 447,533.23 is: 617,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,057.69 : 1,086,039.88 = 447,533.23 : x
  2. Step 2: Convert to fraction form
    787,057.69/1,086,039.88 = 447,533.23/x
  3. Step 3: Cross multiply
    787,057.69x = 1,086,039.88 × 447,533.23
  4. Step 4: Simplify right side
    787,057.69x = 486,038,935,405.21
  5. Step 5: Solve for x
    x = 486,038,935,405.21/787,057.69
  6. Step 6: Final answer
    x = 617,539.15

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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.