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Finding the Fourth Proportional to 550,023.40, 825,812.70 and 340,071.40

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Solution

The fourth proportional to 550,023.40, 825,812.70 and 340,071.40 is: 510,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,023.40 : 825,812.70 = 340,071.40 : x
  2. Step 2: Convert to fraction form
    550,023.40/825,812.70 = 340,071.40/x
  3. Step 3: Cross multiply
    550,023.40x = 825,812.70 × 340,071.40
  4. Step 4: Simplify right side
    550,023.40x = 280,835,281,026.78
  5. Step 5: Solve for x
    x = 280,835,281,026.78/550,023.40
  6. Step 6: Final answer
    x = 510,587.88

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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.