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Finding the Fourth Proportional to 521,632.72, 719,862.29 and 292,188.03

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Solution

The fourth proportional to 521,632.72, 719,862.29 and 292,188.03 is: 403,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,632.72 : 719,862.29 = 292,188.03 : x
  2. Step 2: Convert to fraction form
    521,632.72/719,862.29 = 292,188.03/x
  3. Step 3: Cross multiply
    521,632.72x = 719,862.29 × 292,188.03
  4. Step 4: Simplify right side
    521,632.72x = 210,335,144,386.39
  5. Step 5: Solve for x
    x = 210,335,144,386.39/521,632.72
  6. Step 6: Final answer
    x = 403,224.60

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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.