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Finding the Fourth Proportional to 347,269.60, 520,904.40 and 304,415.20

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Solution

The fourth proportional to 347,269.60, 520,904.40 and 304,415.20 is: 456,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,269.60 : 520,904.40 = 304,415.20 : x
  2. Step 2: Convert to fraction form
    347,269.60/520,904.40 = 304,415.20/x
  3. Step 3: Cross multiply
    347,269.60x = 520,904.40 × 304,415.20
  4. Step 4: Simplify right side
    347,269.60x = 158,571,217,106.88
  5. Step 5: Solve for x
    x = 158,571,217,106.88/347,269.60
  6. Step 6: Final answer
    x = 456,622.80

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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.