Home / 870,429.94-1,201,279.63-488,458.24

Finding the Fourth Proportional to 870,429.94, 1,201,279.63 and 488,458.24

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Solution

The fourth proportional to 870,429.94, 1,201,279.63 and 488,458.24 is: 674,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,429.94 : 1,201,279.63 = 488,458.24 : x
  2. Step 2: Convert to fraction form
    870,429.94/1,201,279.63 = 488,458.24/x
  3. Step 3: Cross multiply
    870,429.94x = 1,201,279.63 × 488,458.24
  4. Step 4: Simplify right side
    870,429.94x = 586,774,933,817.65
  5. Step 5: Solve for x
    x = 586,774,933,817.65/870,429.94
  6. Step 6: Final answer
    x = 674,120.81

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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.