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Finding the Fourth Proportional to 530,388.78, 794,316.84 and 305,276.04

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Solution

The fourth proportional to 530,388.78, 794,316.84 and 305,276.04 is: 457,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,388.78 : 794,316.84 = 305,276.04 : x
  2. Step 2: Convert to fraction form
    530,388.78/794,316.84 = 305,276.04/x
  3. Step 3: Cross multiply
    530,388.78x = 794,316.84 × 305,276.04
  4. Step 4: Simplify right side
    530,388.78x = 242,485,899,420.51
  5. Step 5: Solve for x
    x = 242,485,899,420.51/530,388.78
  6. Step 6: Final answer
    x = 457,185.20

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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.