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Finding the Fourth Proportional to 528,904.48, 793,672 and 191,971.48

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Solution

The fourth proportional to 528,904.48, 793,672 and 191,971.48 is: 288,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,904.48 : 793,672 = 191,971.48 : x
  2. Step 2: Convert to fraction form
    528,904.48/793,672 = 191,971.48/x
  3. Step 3: Cross multiply
    528,904.48x = 793,672 × 191,971.48
  4. Step 4: Simplify right side
    528,904.48x = 152,362,388,474.56
  5. Step 5: Solve for x
    x = 152,362,388,474.56/528,904.48
  6. Step 6: Final answer
    x = 288,071.65

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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.