Home / 389,432.20-584,148.30-365,812.60

Finding the Fourth Proportional to 389,432.20, 584,148.30 and 365,812.60

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Solution

The fourth proportional to 389,432.20, 584,148.30 and 365,812.60 is: 548,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,432.20 : 584,148.30 = 365,812.60 : x
  2. Step 2: Convert to fraction form
    389,432.20/584,148.30 = 365,812.60/x
  3. Step 3: Cross multiply
    389,432.20x = 584,148.30 × 365,812.60
  4. Step 4: Simplify right side
    389,432.20x = 213,688,808,408.58
  5. Step 5: Solve for x
    x = 213,688,808,408.58/389,432.20
  6. Step 6: Final answer
    x = 548,718.90

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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.