Home / 785,434.58-1,178,128.38-216,850.34

Finding the Fourth Proportional to 785,434.58, 1,178,128.38 and 216,850.34

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Solution

The fourth proportional to 785,434.58, 1,178,128.38 and 216,850.34 is: 325,269.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,434.58 : 1,178,128.38 = 216,850.34 : x
  2. Step 2: Convert to fraction form
    785,434.58/1,178,128.38 = 216,850.34/x
  3. Step 3: Cross multiply
    785,434.58x = 1,178,128.38 × 216,850.34
  4. Step 4: Simplify right side
    785,434.58x = 255,477,533,876.01
  5. Step 5: Solve for x
    x = 255,477,533,876.01/785,434.58
  6. Step 6: Final answer
    x = 325,269.02

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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.