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Finding the Fourth Proportional to 911,483.68, 1,367,334.96 and 379,363.36

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Solution

The fourth proportional to 911,483.68, 1,367,334.96 and 379,363.36 is: 569,090.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,483.68 : 1,367,334.96 = 379,363.36 : x
  2. Step 2: Convert to fraction form
    911,483.68/1,367,334.96 = 379,363.36/x
  3. Step 3: Cross multiply
    911,483.68x = 1,367,334.96 × 379,363.36
  4. Step 4: Simplify right side
    911,483.68x = 518,716,784,671.07
  5. Step 5: Solve for x
    x = 518,716,784,671.07/911,483.68
  6. Step 6: Final answer
    x = 569,090.59

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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.