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Finding the Fourth Proportional to 602,606.20, 902,790.96 and 431,474.80

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Solution

The fourth proportional to 602,606.20, 902,790.96 and 431,474.80 is: 646,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,606.20 : 902,790.96 = 431,474.80 : x
  2. Step 2: Convert to fraction form
    602,606.20/902,790.96 = 431,474.80/x
  3. Step 3: Cross multiply
    602,606.20x = 902,790.96 × 431,474.80
  4. Step 4: Simplify right side
    602,606.20x = 389,531,548,907.81
  5. Step 5: Solve for x
    x = 389,531,548,907.81/602,606.20
  6. Step 6: Final answer
    x = 646,411.45

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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.