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Finding the Fourth Proportional to 588,415.40, 882,987.90 and 308,133.80

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Solution

The fourth proportional to 588,415.40, 882,987.90 and 308,133.80 is: 462,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,415.40 : 882,987.90 = 308,133.80 : x
  2. Step 2: Convert to fraction form
    588,415.40/882,987.90 = 308,133.80/x
  3. Step 3: Cross multiply
    588,415.40x = 882,987.90 × 308,133.80
  4. Step 4: Simplify right side
    588,415.40x = 272,078,416,981.02
  5. Step 5: Solve for x
    x = 272,078,416,981.02/588,415.40
  6. Step 6: Final answer
    x = 462,391.73

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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.