Home / 782,898.54-1,082,574.90-621,473.64

Finding the Fourth Proportional to 782,898.54, 1,082,574.90 and 621,473.64

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Solution

The fourth proportional to 782,898.54, 1,082,574.90 and 621,473.64 is: 859,360.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,898.54 : 1,082,574.90 = 621,473.64 : x
  2. Step 2: Convert to fraction form
    782,898.54/1,082,574.90 = 621,473.64/x
  3. Step 3: Cross multiply
    782,898.54x = 1,082,574.90 × 621,473.64
  4. Step 4: Simplify right side
    782,898.54x = 672,791,763,675.64
  5. Step 5: Solve for x
    x = 672,791,763,675.64/782,898.54
  6. Step 6: Final answer
    x = 859,360.09

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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.