Home / 872,762.94-1,204,420.32-490,786.38

Finding the Fourth Proportional to 872,762.94, 1,204,420.32 and 490,786.38

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Solution

The fourth proportional to 872,762.94, 1,204,420.32 and 490,786.38 is: 677,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,762.94 : 1,204,420.32 = 490,786.38 : x
  2. Step 2: Convert to fraction form
    872,762.94/1,204,420.32 = 490,786.38/x
  3. Step 3: Cross multiply
    872,762.94x = 1,204,420.32 × 490,786.38
  4. Step 4: Simplify right side
    872,762.94x = 591,113,088,851.24
  5. Step 5: Solve for x
    x = 591,113,088,851.24/872,762.94
  6. Step 6: Final answer
    x = 677,289.40

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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.