Home / 724,871.03-1,000,334.39-398,197.82

Finding the Fourth Proportional to 724,871.03, 1,000,334.39 and 398,197.82

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Solution

The fourth proportional to 724,871.03, 1,000,334.39 and 398,197.82 is: 549,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,871.03 : 1,000,334.39 = 398,197.82 : x
  2. Step 2: Convert to fraction form
    724,871.03/1,000,334.39 = 398,197.82/x
  3. Step 3: Cross multiply
    724,871.03x = 1,000,334.39 × 398,197.82
  4. Step 4: Simplify right side
    724,871.03x = 398,330,973,369.03
  5. Step 5: Solve for x
    x = 398,330,973,369.03/724,871.03
  6. Step 6: Final answer
    x = 549,519.79

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1.5x scale

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.