Home / 639,002.10-957,689.10-339,626.10

Finding the Fourth Proportional to 639,002.10, 957,689.10 and 339,626.10

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Solution

The fourth proportional to 639,002.10, 957,689.10 and 339,626.10 is: 509,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,002.10 : 957,689.10 = 339,626.10 : x
  2. Step 2: Convert to fraction form
    639,002.10/957,689.10 = 339,626.10/x
  3. Step 3: Cross multiply
    639,002.10x = 957,689.10 × 339,626.10
  4. Step 4: Simplify right side
    639,002.10x = 325,256,214,045.51
  5. Step 5: Solve for x
    x = 325,256,214,045.51/639,002.10
  6. Step 6: Final answer
    x = 509,006.49

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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.