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Finding the Fourth Proportional to 432,489.90, 648,733.32 and 116,946.78

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Solution

The fourth proportional to 432,489.90, 648,733.32 and 116,946.78 is: 175,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,489.90 : 648,733.32 = 116,946.78 : x
  2. Step 2: Convert to fraction form
    432,489.90/648,733.32 = 116,946.78/x
  3. Step 3: Cross multiply
    432,489.90x = 648,733.32 × 116,946.78
  4. Step 4: Simplify right side
    432,489.90x = 75,867,272,852.71
  5. Step 5: Solve for x
    x = 75,867,272,852.71/432,489.90
  6. Step 6: Final answer
    x = 175,419.76

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1.5x scale

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.