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Finding the Fourth Proportional to 555,750.66, 831,342.39 and 443,649.81

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Solution

The fourth proportional to 555,750.66, 831,342.39 and 443,649.81 is: 663,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,750.66 : 831,342.39 = 443,649.81 : x
  2. Step 2: Convert to fraction form
    555,750.66/831,342.39 = 443,649.81/x
  3. Step 3: Cross multiply
    555,750.66x = 831,342.39 × 443,649.81
  4. Step 4: Simplify right side
    555,750.66x = 368,824,893,368.45
  5. Step 5: Solve for x
    x = 368,824,893,368.45/555,750.66
  6. Step 6: Final answer
    x = 663,651.74

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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.