Home / 450,106.76-621,087.18-248,915.72

Finding the Fourth Proportional to 450,106.76, 621,087.18 and 248,915.72

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Solution

The fourth proportional to 450,106.76, 621,087.18 and 248,915.72 is: 343,470.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,106.76 : 621,087.18 = 248,915.72 : x
  2. Step 2: Convert to fraction form
    450,106.76/621,087.18 = 248,915.72/x
  3. Step 3: Cross multiply
    450,106.76x = 621,087.18 × 248,915.72
  4. Step 4: Simplify right side
    450,106.76x = 154,598,359,487.03
  5. Step 5: Solve for x
    x = 154,598,359,487.03/450,106.76
  6. Step 6: Final answer
    x = 343,470.43

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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.