Home / 490,630.32-677,089.04-275,769.72

Finding the Fourth Proportional to 490,630.32, 677,089.04 and 275,769.72

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Solution

The fourth proportional to 490,630.32, 677,089.04 and 275,769.72 is: 380,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,630.32 : 677,089.04 = 275,769.72 : x
  2. Step 2: Convert to fraction form
    490,630.32/677,089.04 = 275,769.72/x
  3. Step 3: Cross multiply
    490,630.32x = 677,089.04 × 275,769.72
  4. Step 4: Simplify right side
    490,630.32x = 186,720,653,597.02
  5. Step 5: Solve for x
    x = 186,720,653,597.02/490,630.32
  6. Step 6: Final answer
    x = 380,573.00

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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.