Home / 868,544.20-1,302,945.90-307,534.60

Finding the Fourth Proportional to 868,544.20, 1,302,945.90 and 307,534.60

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Solution

The fourth proportional to 868,544.20, 1,302,945.90 and 307,534.60 is: 461,347.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,544.20 : 1,302,945.90 = 307,534.60 : x
  2. Step 2: Convert to fraction form
    868,544.20/1,302,945.90 = 307,534.60/x
  3. Step 3: Cross multiply
    868,544.20x = 1,302,945.90 × 307,534.60
  4. Step 4: Simplify right side
    868,544.20x = 400,700,946,178.14
  5. Step 5: Solve for x
    x = 400,700,946,178.14/868,544.20
  6. Step 6: Final answer
    x = 461,347.79

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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.