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Finding the Fourth Proportional to 658,860.98, 909,228.93 and 357,054.98

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Solution

The fourth proportional to 658,860.98, 909,228.93 and 357,054.98 is: 492,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,860.98 : 909,228.93 = 357,054.98 : x
  2. Step 2: Convert to fraction form
    658,860.98/909,228.93 = 357,054.98/x
  3. Step 3: Cross multiply
    658,860.98x = 909,228.93 × 357,054.98
  4. Step 4: Simplify right side
    658,860.98x = 324,644,717,416.57
  5. Step 5: Solve for x
    x = 324,644,717,416.57/658,860.98
  6. Step 6: Final answer
    x = 492,736.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.