Home / 1,285,428.98-1,928,395.68-475,820.47

Finding the Fourth Proportional to 1,285,428.98, 1,928,395.68 and 475,820.47

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Solution

The fourth proportional to 1,285,428.98, 1,928,395.68 and 475,820.47 is: 713,824.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,428.98 : 1,928,395.68 = 475,820.47 : x
  2. Step 2: Convert to fraction form
    1,285,428.98/1,928,395.68 = 475,820.47/x
  3. Step 3: Cross multiply
    1,285,428.98x = 1,928,395.68 × 475,820.47
  4. Step 4: Simplify right side
    1,285,428.98x = 917,570,139,429.74
  5. Step 5: Solve for x
    x = 917,570,139,429.74/1,285,428.98
  6. Step 6: Final answer
    x = 713,824.06

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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.