Home / 868,751.20-1,303,256.40-307,741.60

Finding the Fourth Proportional to 868,751.20, 1,303,256.40 and 307,741.60

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Solution

The fourth proportional to 868,751.20, 1,303,256.40 and 307,741.60 is: 461,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,751.20 : 1,303,256.40 = 307,741.60 : x
  2. Step 2: Convert to fraction form
    868,751.20/1,303,256.40 = 307,741.60/x
  3. Step 3: Cross multiply
    868,751.20x = 1,303,256.40 × 307,741.60
  4. Step 4: Simplify right side
    868,751.20x = 401,066,209,746.24
  5. Step 5: Solve for x
    x = 401,066,209,746.24/868,751.20
  6. Step 6: Final answer
    x = 461,658.31

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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.