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Finding the Fourth Proportional to 602,090.28, 902,960.46 and 392,838.12

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Solution

The fourth proportional to 602,090.28, 902,960.46 and 392,838.12 is: 589,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,090.28 : 902,960.46 = 392,838.12 : x
  2. Step 2: Convert to fraction form
    602,090.28/902,960.46 = 392,838.12/x
  3. Step 3: Cross multiply
    602,090.28x = 902,960.46 × 392,838.12
  4. Step 4: Simplify right side
    602,090.28x = 354,717,289,540.74
  5. Step 5: Solve for x
    x = 354,717,289,540.74/602,090.28
  6. Step 6: Final answer
    x = 589,143.03

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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.