Home / 450,499.05-621,627.35-269,172.68

Finding the Fourth Proportional to 450,499.05, 621,627.35 and 269,172.68

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Solution

The fourth proportional to 450,499.05, 621,627.35 and 269,172.68 is: 371,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,499.05 : 621,627.35 = 269,172.68 : x
  2. Step 2: Convert to fraction form
    450,499.05/621,627.35 = 269,172.68/x
  3. Step 3: Cross multiply
    450,499.05x = 621,627.35 × 269,172.68
  4. Step 4: Simplify right side
    450,499.05x = 167,325,095,306.80
  5. Step 5: Solve for x
    x = 167,325,095,306.80/450,499.05
  6. Step 6: Final answer
    x = 371,421.64

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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.