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Finding the Fourth Proportional to 632,915.92, 873,416.36 and 342,520.72

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Solution

The fourth proportional to 632,915.92, 873,416.36 and 342,520.72 is: 472,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,915.92 : 873,416.36 = 342,520.72 : x
  2. Step 2: Convert to fraction form
    632,915.92/873,416.36 = 342,520.72/x
  3. Step 3: Cross multiply
    632,915.92x = 873,416.36 × 342,520.72
  4. Step 4: Simplify right side
    632,915.92x = 299,163,200,486.98
  5. Step 5: Solve for x
    x = 299,163,200,486.98/632,915.92
  6. Step 6: Final answer
    x = 472,674.48

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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.