Home / 689,671.60-1,034,508.60-216,393.28

Finding the Fourth Proportional to 689,671.60, 1,034,508.60 and 216,393.28

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Solution

The fourth proportional to 689,671.60, 1,034,508.60 and 216,393.28 is: 324,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,671.60 : 1,034,508.60 = 216,393.28 : x
  2. Step 2: Convert to fraction form
    689,671.60/1,034,508.60 = 216,393.28/x
  3. Step 3: Cross multiply
    689,671.60x = 1,034,508.60 × 216,393.28
  4. Step 4: Simplify right side
    689,671.60x = 223,860,709,142.21
  5. Step 5: Solve for x
    x = 223,860,709,142.21/689,671.60
  6. Step 6: Final answer
    x = 324,590.30

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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.