Home / 624,219.20-861,425.45-352,298.55

Finding the Fourth Proportional to 624,219.20, 861,425.45 and 352,298.55

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Solution

The fourth proportional to 624,219.20, 861,425.45 and 352,298.55 is: 486,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,219.20 : 861,425.45 = 352,298.55 : x
  2. Step 2: Convert to fraction form
    624,219.20/861,425.45 = 352,298.55/x
  3. Step 3: Cross multiply
    624,219.20x = 861,425.45 × 352,298.55
  4. Step 4: Simplify right side
    624,219.20x = 303,478,936,968.10
  5. Step 5: Solve for x
    x = 303,478,936,968.10/624,219.20
  6. Step 6: Final answer
    x = 486,173.67

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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.