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Finding the Fourth Proportional to 526,088.52, 725,830.88 and 321,926.40

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Solution

The fourth proportional to 526,088.52, 725,830.88 and 321,926.40 is: 444,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,088.52 : 725,830.88 = 321,926.40 : x
  2. Step 2: Convert to fraction form
    526,088.52/725,830.88 = 321,926.40/x
  3. Step 3: Cross multiply
    526,088.52x = 725,830.88 × 321,926.40
  4. Step 4: Simplify right side
    526,088.52x = 233,664,120,597.60
  5. Step 5: Solve for x
    x = 233,664,120,597.60/526,088.52
  6. Step 6: Final answer
    x = 444,153.62

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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.