Home / 487,664.09-731,422.33-132,705.79

Finding the Fourth Proportional to 487,664.09, 731,422.33 and 132,705.79

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Solution

The fourth proportional to 487,664.09, 731,422.33 and 132,705.79 is: 199,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,664.09 : 731,422.33 = 132,705.79 : x
  2. Step 2: Convert to fraction form
    487,664.09/731,422.33 = 132,705.79/x
  3. Step 3: Cross multiply
    487,664.09x = 731,422.33 × 132,705.79
  4. Step 4: Simplify right side
    487,664.09x = 97,063,980,453.46
  5. Step 5: Solve for x
    x = 97,063,980,453.46/487,664.09
  6. Step 6: Final answer
    x = 199,038.60

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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.