Home / 868,455.20-1,302,913.20-307,431.20

Finding the Fourth Proportional to 868,455.20, 1,302,913.20 and 307,431.20

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Solution

The fourth proportional to 868,455.20, 1,302,913.20 and 307,431.20 is: 461,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,455.20 : 1,302,913.20 = 307,431.20 : x
  2. Step 2: Convert to fraction form
    868,455.20/1,302,913.20 = 307,431.20/x
  3. Step 3: Cross multiply
    868,455.20x = 1,302,913.20 × 307,431.20
  4. Step 4: Simplify right side
    868,455.20x = 400,556,168,571.84
  5. Step 5: Solve for x
    x = 400,556,168,571.84/868,455.20
  6. Step 6: Final answer
    x = 461,228.36

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1.5x scale

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.