Home / 450,315.27-621,421.34-268,986.24

Finding the Fourth Proportional to 450,315.27, 621,421.34 and 268,986.24

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Solution

The fourth proportional to 450,315.27, 621,421.34 and 268,986.24 is: 371,192.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,315.27 : 621,421.34 = 268,986.24 : x
  2. Step 2: Convert to fraction form
    450,315.27/621,421.34 = 268,986.24/x
  3. Step 3: Cross multiply
    450,315.27x = 621,421.34 × 268,986.24
  4. Step 4: Simplify right side
    450,315.27x = 167,153,788,357.43
  5. Step 5: Solve for x
    x = 167,153,788,357.43/450,315.27
  6. Step 6: Final answer
    x = 371,192.81

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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.