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Finding the Fourth Proportional to 634,045.86, 875,262.51 and 443,806.02

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Solution

The fourth proportional to 634,045.86, 875,262.51 and 443,806.02 is: 612,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,045.86 : 875,262.51 = 443,806.02 : x
  2. Step 2: Convert to fraction form
    634,045.86/875,262.51 = 443,806.02/x
  3. Step 3: Cross multiply
    634,045.86x = 875,262.51 × 443,806.02
  4. Step 4: Simplify right side
    634,045.86x = 388,446,771,018.31
  5. Step 5: Solve for x
    x = 388,446,771,018.31/634,045.86
  6. Step 6: Final answer
    x = 612,647.75

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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.