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Finding the Fourth Proportional to 777,343.43, 1,072,820.79 and 433,210.79

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Solution

The fourth proportional to 777,343.43, 1,072,820.79 and 433,210.79 is: 597,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,343.43 : 1,072,820.79 = 433,210.79 : x
  2. Step 2: Convert to fraction form
    777,343.43/1,072,820.79 = 433,210.79/x
  3. Step 3: Cross multiply
    777,343.43x = 1,072,820.79 × 433,210.79
  4. Step 4: Simplify right side
    777,343.43x = 464,757,541,964.32
  5. Step 5: Solve for x
    x = 464,757,541,964.32/777,343.43
  6. Step 6: Final answer
    x = 597,879.30

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1.5x scale

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.