Home / 856,645.05-1,284,970.52-216,948.57

Finding the Fourth Proportional to 856,645.05, 1,284,970.52 and 216,948.57

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Solution

The fourth proportional to 856,645.05, 1,284,970.52 and 216,948.57 is: 325,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,645.05 : 1,284,970.52 = 216,948.57 : x
  2. Step 2: Convert to fraction form
    856,645.05/1,284,970.52 = 216,948.57/x
  3. Step 3: Cross multiply
    856,645.05x = 1,284,970.52 × 216,948.57
  4. Step 4: Simplify right side
    856,645.05x = 278,772,516,806.16
  5. Step 5: Solve for x
    x = 278,772,516,806.16/856,645.05
  6. Step 6: Final answer
    x = 325,423.60

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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.