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Finding the Fourth Proportional to 639,333.51, 958,237.62 and 297,315.24

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Solution

The fourth proportional to 639,333.51, 958,237.62 and 297,315.24 is: 445,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,333.51 : 958,237.62 = 297,315.24 : x
  2. Step 2: Convert to fraction form
    639,333.51/958,237.62 = 297,315.24/x
  3. Step 3: Cross multiply
    639,333.51x = 958,237.62 × 297,315.24
  4. Step 4: Simplify right side
    639,333.51x = 284,898,647,967.33
  5. Step 5: Solve for x
    x = 284,898,647,967.33/639,333.51
  6. Step 6: Final answer
    x = 445,618.20

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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.