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Finding the Fourth Proportional to 623,074.52, 860,129.88 and 364,915.64

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Solution

The fourth proportional to 623,074.52, 860,129.88 and 364,915.64 is: 503,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,074.52 : 860,129.88 = 364,915.64 : x
  2. Step 2: Convert to fraction form
    623,074.52/860,129.88 = 364,915.64/x
  3. Step 3: Cross multiply
    623,074.52x = 860,129.88 × 364,915.64
  4. Step 4: Simplify right side
    623,074.52x = 313,874,845,643.32
  5. Step 5: Solve for x
    x = 313,874,845,643.32/623,074.52
  6. Step 6: Final answer
    x = 503,751.70

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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.