Home / 690,119.40-952,408.28-418,211.07

Finding the Fourth Proportional to 690,119.40, 952,408.28 and 418,211.07

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Solution

The fourth proportional to 690,119.40, 952,408.28 and 418,211.07 is: 577,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,119.40 : 952,408.28 = 418,211.07 : x
  2. Step 2: Convert to fraction form
    690,119.40/952,408.28 = 418,211.07/x
  3. Step 3: Cross multiply
    690,119.40x = 952,408.28 × 418,211.07
  4. Step 4: Simplify right side
    690,119.40x = 398,307,683,764.60
  5. Step 5: Solve for x
    x = 398,307,683,764.60/690,119.40
  6. Step 6: Final answer
    x = 577,157.64

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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.