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Finding the Fourth Proportional to 534,706.20, 802,059.30 and 345,749.40

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Solution

The fourth proportional to 534,706.20, 802,059.30 and 345,749.40 is: 518,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,706.20 : 802,059.30 = 345,749.40 : x
  2. Step 2: Convert to fraction form
    534,706.20/802,059.30 = 345,749.40/x
  3. Step 3: Cross multiply
    534,706.20x = 802,059.30 × 345,749.40
  4. Step 4: Simplify right side
    534,706.20x = 277,311,521,739.42
  5. Step 5: Solve for x
    x = 277,311,521,739.42/534,706.20
  6. Step 6: Final answer
    x = 518,624.10

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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.