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Finding the Fourth Proportional to 557,428.65, 769,570.73 and 366,995.63

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Solution

The fourth proportional to 557,428.65, 769,570.73 and 366,995.63 is: 506,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,428.65 : 769,570.73 = 366,995.63 : x
  2. Step 2: Convert to fraction form
    557,428.65/769,570.73 = 366,995.63/x
  3. Step 3: Cross multiply
    557,428.65x = 769,570.73 × 366,995.63
  4. Step 4: Simplify right side
    557,428.65x = 282,429,089,203.08
  5. Step 5: Solve for x
    x = 282,429,089,203.08/557,428.65
  6. Step 6: Final answer
    x = 506,664.11

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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.