Home / 911,946.34-1,367,942.87-432,061.78

Finding the Fourth Proportional to 911,946.34, 1,367,942.87 and 432,061.78

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Solution

The fourth proportional to 911,946.34, 1,367,942.87 and 432,061.78 is: 648,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,946.34 : 1,367,942.87 = 432,061.78 : x
  2. Step 2: Convert to fraction form
    911,946.34/1,367,942.87 = 432,061.78/x
  3. Step 3: Cross multiply
    911,946.34x = 1,367,942.87 × 432,061.78
  4. Step 4: Simplify right side
    911,946.34x = 591,035,831,350.51
  5. Step 5: Solve for x
    x = 591,035,831,350.51/911,946.34
  6. Step 6: Final answer
    x = 648,103.74

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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.