Home / 1,047,438.72-1,445,419.31-611,896.40

Finding the Fourth Proportional to 1,047,438.72, 1,445,419.31 and 611,896.40

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Solution

The fourth proportional to 1,047,438.72, 1,445,419.31 and 611,896.40 is: 844,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,438.72 : 1,445,419.31 = 611,896.40 : x
  2. Step 2: Convert to fraction form
    1,047,438.72/1,445,419.31 = 611,896.40/x
  3. Step 3: Cross multiply
    1,047,438.72x = 1,445,419.31 × 611,896.40
  4. Step 4: Simplify right side
    1,047,438.72x = 884,446,861,992.91
  5. Step 5: Solve for x
    x = 884,446,861,992.91/1,047,438.72
  6. Step 6: Final answer
    x = 844,390.08

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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.