Home / 450,319.21-621,338.76-268,995.64

Finding the Fourth Proportional to 450,319.21, 621,338.76 and 268,995.64

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Solution

The fourth proportional to 450,319.21, 621,338.76 and 268,995.64 is: 371,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,319.21 : 621,338.76 = 268,995.64 : x
  2. Step 2: Convert to fraction form
    450,319.21/621,338.76 = 268,995.64/x
  3. Step 3: Cross multiply
    450,319.21x = 621,338.76 × 268,995.64
  4. Step 4: Simplify right side
    450,319.21x = 167,137,418,956.35
  5. Step 5: Solve for x
    x = 167,137,418,956.35/450,319.21
  6. Step 6: Final answer
    x = 371,153.21

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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.