Home / 870,835.41-1,201,767.71-478,384.91

Finding the Fourth Proportional to 870,835.41, 1,201,767.71 and 478,384.91

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Solution

The fourth proportional to 870,835.41, 1,201,767.71 and 478,384.91 is: 660,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,835.41 : 1,201,767.71 = 478,384.91 : x
  2. Step 2: Convert to fraction form
    870,835.41/1,201,767.71 = 478,384.91/x
  3. Step 3: Cross multiply
    870,835.41x = 1,201,767.71 × 478,384.91
  4. Step 4: Simplify right side
    870,835.41x = 574,907,537,789.26
  5. Step 5: Solve for x
    x = 574,907,537,789.26/870,835.41
  6. Step 6: Final answer
    x = 660,179.33

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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.