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Finding the Fourth Proportional to 509,590.40, 763,334.40 and 298,588.80

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Solution

The fourth proportional to 509,590.40, 763,334.40 and 298,588.80 is: 447,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,590.40 : 763,334.40 = 298,588.80 : x
  2. Step 2: Convert to fraction form
    509,590.40/763,334.40 = 298,588.80/x
  3. Step 3: Cross multiply
    509,590.40x = 763,334.40 × 298,588.80
  4. Step 4: Simplify right side
    509,590.40x = 227,923,102,494.72
  5. Step 5: Solve for x
    x = 227,923,102,494.72/509,590.40
  6. Step 6: Final answer
    x = 447,267.26

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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.