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Finding the Fourth Proportional to 623,460.26, 860,375.32 and 336,979.46

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Solution

The fourth proportional to 623,460.26, 860,375.32 and 336,979.46 is: 465,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,460.26 : 860,375.32 = 336,979.46 : x
  2. Step 2: Convert to fraction form
    623,460.26/860,375.32 = 336,979.46/x
  3. Step 3: Cross multiply
    623,460.26x = 860,375.32 × 336,979.46
  4. Step 4: Simplify right side
    623,460.26x = 289,928,810,730.93
  5. Step 5: Solve for x
    x = 289,928,810,730.93/623,460.26
  6. Step 6: Final answer
    x = 465,031.74

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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.