Home / 812,082.47-1,217,438.46-511,901.35

Finding the Fourth Proportional to 812,082.47, 1,217,438.46 and 511,901.35

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Solution

The fourth proportional to 812,082.47, 1,217,438.46 and 511,901.35 is: 767,420.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,082.47 : 1,217,438.46 = 511,901.35 : x
  2. Step 2: Convert to fraction form
    812,082.47/1,217,438.46 = 511,901.35/x
  3. Step 3: Cross multiply
    812,082.47x = 1,217,438.46 × 511,901.35
  4. Step 4: Simplify right side
    812,082.47x = 623,208,388,172.33
  5. Step 5: Solve for x
    x = 623,208,388,172.33/812,082.47
  6. Step 6: Final answer
    x = 767,420.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.