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Finding the Fourth Proportional to 415,018.58, 623,087.57 and 265,550.63

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Solution

The fourth proportional to 415,018.58, 623,087.57 and 265,550.63 is: 398,684.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,018.58 : 623,087.57 = 265,550.63 : x
  2. Step 2: Convert to fraction form
    415,018.58/623,087.57 = 265,550.63/x
  3. Step 3: Cross multiply
    415,018.58x = 623,087.57 × 265,550.63
  4. Step 4: Simplify right side
    415,018.58x = 165,461,294,307.11
  5. Step 5: Solve for x
    x = 165,461,294,307.11/415,018.58
  6. Step 6: Final answer
    x = 398,684.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.