Home / 426,180.80-639,271.20-248,596.40

Finding the Fourth Proportional to 426,180.80, 639,271.20 and 248,596.40

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Solution

The fourth proportional to 426,180.80, 639,271.20 and 248,596.40 is: 372,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,180.80 : 639,271.20 = 248,596.40 : x
  2. Step 2: Convert to fraction form
    426,180.80/639,271.20 = 248,596.40/x
  3. Step 3: Cross multiply
    426,180.80x = 639,271.20 × 248,596.40
  4. Step 4: Simplify right side
    426,180.80x = 158,920,518,943.68
  5. Step 5: Solve for x
    x = 158,920,518,943.68/426,180.80
  6. Step 6: Final answer
    x = 372,894.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.