Home / 402,400.05-604,112.25-260,837.71

Finding the Fourth Proportional to 402,400.05, 604,112.25 and 260,837.71

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Solution

The fourth proportional to 402,400.05, 604,112.25 and 260,837.71 is: 391,588.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,400.05 : 604,112.25 = 260,837.71 : x
  2. Step 2: Convert to fraction form
    402,400.05/604,112.25 = 260,837.71/x
  3. Step 3: Cross multiply
    402,400.05x = 604,112.25 × 260,837.71
  4. Step 4: Simplify right side
    402,400.05x = 157,575,255,340.81
  5. Step 5: Solve for x
    x = 157,575,255,340.81/402,400.05
  6. Step 6: Final answer
    x = 391,588.56

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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.