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Finding the Fourth Proportional to 623,308.90, 936,000.15 and 343,027.30

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Solution

The fourth proportional to 623,308.90, 936,000.15 and 343,027.30 is: 515,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,308.90 : 936,000.15 = 343,027.30 : x
  2. Step 2: Convert to fraction form
    623,308.90/936,000.15 = 343,027.30/x
  3. Step 3: Cross multiply
    623,308.90x = 936,000.15 × 343,027.30
  4. Step 4: Simplify right side
    623,308.90x = 321,073,604,254.10
  5. Step 5: Solve for x
    x = 321,073,604,254.10/623,308.90
  6. Step 6: Final answer
    x = 515,111.53

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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.