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Finding the Fourth Proportional to 602,054.78, 830,844.96 and 330,147.50

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Solution

The fourth proportional to 602,054.78, 830,844.96 and 330,147.50 is: 455,608.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,054.78 : 830,844.96 = 330,147.50 : x
  2. Step 2: Convert to fraction form
    602,054.78/830,844.96 = 330,147.50/x
  3. Step 3: Cross multiply
    602,054.78x = 830,844.96 × 330,147.50
  4. Step 4: Simplify right side
    602,054.78x = 274,301,386,431.60
  5. Step 5: Solve for x
    x = 274,301,386,431.60/602,054.78
  6. Step 6: Final answer
    x = 455,608.68

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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.