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Finding the Fourth Proportional to 658,063.54, 987,460.08 and 321,106.98

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Solution

The fourth proportional to 658,063.54, 987,460.08 and 321,106.98 is: 481,838.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,063.54 : 987,460.08 = 321,106.98 : x
  2. Step 2: Convert to fraction form
    658,063.54/987,460.08 = 321,106.98/x
  3. Step 3: Cross multiply
    658,063.54x = 987,460.08 × 321,106.98
  4. Step 4: Simplify right side
    658,063.54x = 317,080,324,159.36
  5. Step 5: Solve for x
    x = 317,080,324,159.36/658,063.54
  6. Step 6: Final answer
    x = 481,838.46

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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.