Home / 485,794.16-670,364.04-267,989.84

Finding the Fourth Proportional to 485,794.16, 670,364.04 and 267,989.84

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Solution

The fourth proportional to 485,794.16, 670,364.04 and 267,989.84 is: 369,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,794.16 : 670,364.04 = 267,989.84 : x
  2. Step 2: Convert to fraction form
    485,794.16/670,364.04 = 267,989.84/x
  3. Step 3: Cross multiply
    485,794.16x = 670,364.04 × 267,989.84
  4. Step 4: Simplify right side
    485,794.16x = 179,650,751,821.35
  5. Step 5: Solve for x
    x = 179,650,751,821.35/485,794.16
  6. Step 6: Final answer
    x = 369,808.38

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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.