Home / 326,348.64-489,501.09-89,671.50

Finding the Fourth Proportional to 326,348.64, 489,501.09 and 89,671.50

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Solution

The fourth proportional to 326,348.64, 489,501.09 and 89,671.50 is: 134,501.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,348.64 : 489,501.09 = 89,671.50 : x
  2. Step 2: Convert to fraction form
    326,348.64/489,501.09 = 89,671.50/x
  3. Step 3: Cross multiply
    326,348.64x = 489,501.09 × 89,671.50
  4. Step 4: Simplify right side
    326,348.64x = 43,894,296,991.94
  5. Step 5: Solve for x
    x = 43,894,296,991.94/326,348.64
  6. Step 6: Final answer
    x = 134,501.24

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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.