Home / 631,055.49-870,853.09-344,573.55

Finding the Fourth Proportional to 631,055.49, 870,853.09 and 344,573.55

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Solution

The fourth proportional to 631,055.49, 870,853.09 and 344,573.55 is: 475,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,055.49 : 870,853.09 = 344,573.55 : x
  2. Step 2: Convert to fraction form
    631,055.49/870,853.09 = 344,573.55/x
  3. Step 3: Cross multiply
    631,055.49x = 870,853.09 × 344,573.55
  4. Step 4: Simplify right side
    631,055.49x = 300,072,940,749.77
  5. Step 5: Solve for x
    x = 300,072,940,749.77/631,055.49
  6. Step 6: Final answer
    x = 475,509.60

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Double scale
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1.5x scale

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.