Home / 484,337.20-668,374.91-280,396.74

Finding the Fourth Proportional to 484,337.20, 668,374.91 and 280,396.74

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Solution

The fourth proportional to 484,337.20, 668,374.91 and 280,396.74 is: 386,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,337.20 : 668,374.91 = 280,396.74 : x
  2. Step 2: Convert to fraction form
    484,337.20/668,374.91 = 280,396.74/x
  3. Step 3: Cross multiply
    484,337.20x = 668,374.91 × 280,396.74
  4. Step 4: Simplify right side
    484,337.20x = 187,410,145,861.79
  5. Step 5: Solve for x
    x = 187,410,145,861.79/484,337.20
  6. Step 6: Final answer
    x = 386,941.47

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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.