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Finding the Fourth Proportional to 601,028.80, 902,043.78 and 316,821.40

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Solution

The fourth proportional to 601,028.80, 902,043.78 and 316,821.40 is: 475,495.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,028.80 : 902,043.78 = 316,821.40 : x
  2. Step 2: Convert to fraction form
    601,028.80/902,043.78 = 316,821.40/x
  3. Step 3: Cross multiply
    601,028.80x = 902,043.78 × 316,821.40
  4. Step 4: Simplify right side
    601,028.80x = 285,786,773,240.89
  5. Step 5: Solve for x
    x = 285,786,773,240.89/601,028.80
  6. Step 6: Final answer
    x = 475,495.97

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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.