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Finding the Fourth Proportional to 648,087.44, 894,339.68 and 353,725.92

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Solution

The fourth proportional to 648,087.44, 894,339.68 and 353,725.92 is: 488,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,087.44 : 894,339.68 = 353,725.92 : x
  2. Step 2: Convert to fraction form
    648,087.44/894,339.68 = 353,725.92/x
  3. Step 3: Cross multiply
    648,087.44x = 894,339.68 × 353,725.92
  4. Step 4: Simplify right side
    648,087.44x = 316,351,126,100.51
  5. Step 5: Solve for x
    x = 316,351,126,100.51/648,087.44
  6. Step 6: Final answer
    x = 488,130.31

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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.