Home / 943,136.80-1,301,488.96-513,408

Finding the Fourth Proportional to 943,136.80, 1,301,488.96 and 513,408

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Solution

The fourth proportional to 943,136.80, 1,301,488.96 and 513,408 is: 708,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,136.80 : 1,301,488.96 = 513,408 : x
  2. Step 2: Convert to fraction form
    943,136.80/1,301,488.96 = 513,408/x
  3. Step 3: Cross multiply
    943,136.80x = 1,301,488.96 × 513,408
  4. Step 4: Simplify right side
    943,136.80x = 668,194,843,975.68
  5. Step 5: Solve for x
    x = 668,194,843,975.68/943,136.80
  6. Step 6: Final answer
    x = 708,481.36

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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.