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Finding the Fourth Proportional to 556,938.96, 768,576.60 and 302,290.26

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Solution

The fourth proportional to 556,938.96, 768,576.60 and 302,290.26 is: 417,161.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,938.96 : 768,576.60 = 302,290.26 : x
  2. Step 2: Convert to fraction form
    556,938.96/768,576.60 = 302,290.26/x
  3. Step 3: Cross multiply
    556,938.96x = 768,576.60 × 302,290.26
  4. Step 4: Simplify right side
    556,938.96x = 232,333,220,243.92
  5. Step 5: Solve for x
    x = 232,333,220,243.92/556,938.96
  6. Step 6: Final answer
    x = 417,161.01

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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.