Home / 686,894.96-1,030,559.72-308,140.58

Finding the Fourth Proportional to 686,894.96, 1,030,559.72 and 308,140.58

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Solution

The fourth proportional to 686,894.96, 1,030,559.72 and 308,140.58 is: 462,308.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,894.96 : 1,030,559.72 = 308,140.58 : x
  2. Step 2: Convert to fraction form
    686,894.96/1,030,559.72 = 308,140.58/x
  3. Step 3: Cross multiply
    686,894.96x = 1,030,559.72 × 308,140.58
  4. Step 4: Simplify right side
    686,894.96x = 317,557,263,151.94
  5. Step 5: Solve for x
    x = 317,557,263,151.94/686,894.96
  6. Step 6: Final answer
    x = 462,308.34

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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.