Home / 870,953.88-1,305,711.56-384,289.55

Finding the Fourth Proportional to 870,953.88, 1,305,711.56 and 384,289.55

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Solution

The fourth proportional to 870,953.88, 1,305,711.56 and 384,289.55 is: 576,116.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,953.88 : 1,305,711.56 = 384,289.55 : x
  2. Step 2: Convert to fraction form
    870,953.88/1,305,711.56 = 384,289.55/x
  3. Step 3: Cross multiply
    870,953.88x = 1,305,711.56 × 384,289.55
  4. Step 4: Simplify right side
    870,953.88x = 501,771,299,372.19
  5. Step 5: Solve for x
    x = 501,771,299,372.19/870,953.88
  6. Step 6: Final answer
    x = 576,116.96

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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.