Home / 521,572.40-719,063.16-445,904.28

Finding the Fourth Proportional to 521,572.40, 719,063.16 and 445,904.28

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Solution

The fourth proportional to 521,572.40, 719,063.16 and 445,904.28 is: 614,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,572.40 : 719,063.16 = 445,904.28 : x
  2. Step 2: Convert to fraction form
    521,572.40/719,063.16 = 445,904.28/x
  3. Step 3: Cross multiply
    521,572.40x = 719,063.16 × 445,904.28
  4. Step 4: Simplify right side
    521,572.40x = 320,633,340,634.33
  5. Step 5: Solve for x
    x = 320,633,340,634.33/521,572.40
  6. Step 6: Final answer
    x = 614,743.69

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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.