Home / 631,131.52-870,968.64-344,655.04

Finding the Fourth Proportional to 631,131.52, 870,968.64 and 344,655.04

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Solution

The fourth proportional to 631,131.52, 870,968.64 and 344,655.04 is: 475,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,131.52 : 870,968.64 = 344,655.04 : x
  2. Step 2: Convert to fraction form
    631,131.52/870,968.64 = 344,655.04/x
  3. Step 3: Cross multiply
    631,131.52x = 870,968.64 × 344,655.04
  4. Step 4: Simplify right side
    631,131.52x = 300,183,731,457.95
  5. Step 5: Solve for x
    x = 300,183,731,457.95/631,131.52
  6. Step 6: Final answer
    x = 475,627.86

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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.