Home / 872,880.84-1,204,563.96-490,907.61

Finding the Fourth Proportional to 872,880.84, 1,204,563.96 and 490,907.61

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Solution

The fourth proportional to 872,880.84, 1,204,563.96 and 490,907.61 is: 677,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,880.84 : 1,204,563.96 = 490,907.61 : x
  2. Step 2: Convert to fraction form
    872,880.84/1,204,563.96 = 490,907.61/x
  3. Step 3: Cross multiply
    872,880.84x = 1,204,563.96 × 490,907.61
  4. Step 4: Simplify right side
    872,880.84x = 591,329,614,695.74
  5. Step 5: Solve for x
    x = 591,329,614,695.74/872,880.84
  6. Step 6: Final answer
    x = 677,445.98

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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.