Home / 690,396.23-952,720.22-384,485.50

Finding the Fourth Proportional to 690,396.23, 952,720.22 and 384,485.50

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Solution

The fourth proportional to 690,396.23, 952,720.22 and 384,485.50 is: 530,575.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,396.23 : 952,720.22 = 384,485.50 : x
  2. Step 2: Convert to fraction form
    690,396.23/952,720.22 = 384,485.50/x
  3. Step 3: Cross multiply
    690,396.23x = 952,720.22 × 384,485.50
  4. Step 4: Simplify right side
    690,396.23x = 366,307,108,224.38
  5. Step 5: Solve for x
    x = 366,307,108,224.38/690,396.23
  6. Step 6: Final answer
    x = 530,575.19

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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.