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Finding the Fourth Proportional to 572,018.76, 789,378.82 and 310,370.13

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Solution

The fourth proportional to 572,018.76, 789,378.82 and 310,370.13 is: 428,306.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,018.76 : 789,378.82 = 310,370.13 : x
  2. Step 2: Convert to fraction form
    572,018.76/789,378.82 = 310,370.13/x
  3. Step 3: Cross multiply
    572,018.76x = 789,378.82 × 310,370.13
  4. Step 4: Simplify right side
    572,018.76x = 244,999,606,206.72
  5. Step 5: Solve for x
    x = 244,999,606,206.72/572,018.76
  6. Step 6: Final answer
    x = 428,306.94

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