Home / 864,405.72-1,191,452.16-577,821.24

Finding the Fourth Proportional to 864,405.72, 1,191,452.16 and 577,821.24

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Solution

The fourth proportional to 864,405.72, 1,191,452.16 and 577,821.24 is: 796,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,405.72 : 1,191,452.16 = 577,821.24 : x
  2. Step 2: Convert to fraction form
    864,405.72/1,191,452.16 = 577,821.24/x
  3. Step 3: Cross multiply
    864,405.72x = 1,191,452.16 × 577,821.24
  4. Step 4: Simplify right side
    864,405.72x = 688,446,364,491.88
  5. Step 5: Solve for x
    x = 688,446,364,491.88/864,405.72
  6. Step 6: Final answer
    x = 796,438.93

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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.