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Finding the Fourth Proportional to 803,370, 1,108,650.60 and 445,674

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Solution

The fourth proportional to 803,370, 1,108,650.60 and 445,674 is: 615,030.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,370 : 1,108,650.60 = 445,674 : x
  2. Step 2: Convert to fraction form
    803,370/1,108,650.60 = 445,674/x
  3. Step 3: Cross multiply
    803,370x = 1,108,650.60 × 445,674
  4. Step 4: Simplify right side
    803,370x = 494,096,747,504.40
  5. Step 5: Solve for x
    x = 494,096,747,504.40/803,370
  6. Step 6: Final answer
    x = 615,030.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.