Home / 882,638.72-1,218,001.51-538,419.96

Finding the Fourth Proportional to 882,638.72, 1,218,001.51 and 538,419.96

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Solution

The fourth proportional to 882,638.72, 1,218,001.51 and 538,419.96 is: 742,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,638.72 : 1,218,001.51 = 538,419.96 : x
  2. Step 2: Convert to fraction form
    882,638.72/1,218,001.51 = 538,419.96/x
  3. Step 3: Cross multiply
    882,638.72x = 1,218,001.51 × 538,419.96
  4. Step 4: Simplify right side
    882,638.72x = 655,796,321,938.55
  5. Step 5: Solve for x
    x = 655,796,321,938.55/882,638.72
  6. Step 6: Final answer
    x = 742,995.18

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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.