Home / 521,403-719,536.14-282,939

Finding the Fourth Proportional to 521,403, 719,536.14 and 282,939

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Solution

The fourth proportional to 521,403, 719,536.14 and 282,939 is: 390,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,403 : 719,536.14 = 282,939 : x
  2. Step 2: Convert to fraction form
    521,403/719,536.14 = 282,939/x
  3. Step 3: Cross multiply
    521,403x = 719,536.14 × 282,939
  4. Step 4: Simplify right side
    521,403x = 203,584,835,915.46
  5. Step 5: Solve for x
    x = 203,584,835,915.46/521,403
  6. Step 6: Final answer
    x = 390,455.82

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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.