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Finding the Fourth Proportional to 487,673.40, 731,412.90 and 234,953.40

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Solution

The fourth proportional to 487,673.40, 731,412.90 and 234,953.40 is: 352,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,673.40 : 731,412.90 = 234,953.40 : x
  2. Step 2: Convert to fraction form
    487,673.40/731,412.90 = 234,953.40/x
  3. Step 3: Cross multiply
    487,673.40x = 731,412.90 × 234,953.40
  4. Step 4: Simplify right side
    487,673.40x = 171,847,947,658.86
  5. Step 5: Solve for x
    x = 171,847,947,658.86/487,673.40
  6. Step 6: Final answer
    x = 352,383.27

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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.