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Finding the Fourth Proportional to 979,830, 1,352,061.72 and 550,158.48

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Solution

The fourth proportional to 979,830, 1,352,061.72 and 550,158.48 is: 759,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,830 : 1,352,061.72 = 550,158.48 : x
  2. Step 2: Convert to fraction form
    979,830/1,352,061.72 = 550,158.48/x
  3. Step 3: Cross multiply
    979,830x = 1,352,061.72 × 550,158.48
  4. Step 4: Simplify right side
    979,830x = 743,848,220,741.39
  5. Step 5: Solve for x
    x = 743,848,220,741.39/979,830
  6. Step 6: Final answer
    x = 759,160.49

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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.