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Finding the Fourth Proportional to 777,518.62, 1,072,980.69 and 433,376.40

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Solution

The fourth proportional to 777,518.62, 1,072,980.69 and 433,376.40 is: 598,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,518.62 : 1,072,980.69 = 433,376.40 : x
  2. Step 2: Convert to fraction form
    777,518.62/1,072,980.69 = 433,376.40/x
  3. Step 3: Cross multiply
    777,518.62x = 1,072,980.69 × 433,376.40
  4. Step 4: Simplify right side
    777,518.62x = 465,004,508,701.72
  5. Step 5: Solve for x
    x = 465,004,508,701.72/777,518.62
  6. Step 6: Final answer
    x = 598,062.22

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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.