Home / 621,409.17-932,986.50-318,020.33

Finding the Fourth Proportional to 621,409.17, 932,986.50 and 318,020.33

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Solution

The fourth proportional to 621,409.17, 932,986.50 and 318,020.33 is: 477,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,409.17 : 932,986.50 = 318,020.33 : x
  2. Step 2: Convert to fraction form
    621,409.17/932,986.50 = 318,020.33/x
  3. Step 3: Cross multiply
    621,409.17x = 932,986.50 × 318,020.33
  4. Step 4: Simplify right side
    621,409.17x = 296,708,672,296.25
  5. Step 5: Solve for x
    x = 296,708,672,296.25/621,409.17
  6. Step 6: Final answer
    x = 477,477.14

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1.5x scale

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.