Home / 1,412,575.70-2,118,636.56-387,666.52

Finding the Fourth Proportional to 1,412,575.70, 2,118,636.56 and 387,666.52

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Solution

The fourth proportional to 1,412,575.70, 2,118,636.56 and 387,666.52 is: 581,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,575.70 : 2,118,636.56 = 387,666.52 : x
  2. Step 2: Convert to fraction form
    1,412,575.70/2,118,636.56 = 387,666.52/x
  3. Step 3: Cross multiply
    1,412,575.70x = 2,118,636.56 × 387,666.52
  4. Step 4: Simplify right side
    1,412,575.70x = 821,324,458,032.55
  5. Step 5: Solve for x
    x = 821,324,458,032.55/1,412,575.70
  6. Step 6: Final answer
    x = 581,437.48

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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.