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Finding the Fourth Proportional to 424,999.76, 634,390.28 and 374,556

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Solution

The fourth proportional to 424,999.76, 634,390.28 and 374,556 is: 559,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,999.76 : 634,390.28 = 374,556 : x
  2. Step 2: Convert to fraction form
    424,999.76/634,390.28 = 374,556/x
  3. Step 3: Cross multiply
    424,999.76x = 634,390.28 × 374,556
  4. Step 4: Simplify right side
    424,999.76x = 237,614,685,715.68
  5. Step 5: Solve for x
    x = 237,614,685,715.68/424,999.76
  6. Step 6: Final answer
    x = 559,093.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.