Home / 819,130.48-1,228,608.32-286,661.68

Finding the Fourth Proportional to 819,130.48, 1,228,608.32 and 286,661.68

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Solution

The fourth proportional to 819,130.48, 1,228,608.32 and 286,661.68 is: 429,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,130.48 : 1,228,608.32 = 286,661.68 : x
  2. Step 2: Convert to fraction form
    819,130.48/1,228,608.32 = 286,661.68/x
  3. Step 3: Cross multiply
    819,130.48x = 1,228,608.32 × 286,661.68
  4. Step 4: Simplify right side
    819,130.48x = 352,194,925,073.18
  5. Step 5: Solve for x
    x = 352,194,925,073.18/819,130.48
  6. Step 6: Final answer
    x = 429,961.93

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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.