Home / 1,288,636.58-1,778,459.46-737,403.20

Finding the Fourth Proportional to 1,288,636.58, 1,778,459.46 and 737,403.20

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Solution

The fourth proportional to 1,288,636.58, 1,778,459.46 and 737,403.20 is: 1,017,697.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,636.58 : 1,778,459.46 = 737,403.20 : x
  2. Step 2: Convert to fraction form
    1,288,636.58/1,778,459.46 = 737,403.20/x
  3. Step 3: Cross multiply
    1,288,636.58x = 1,778,459.46 × 737,403.20
  4. Step 4: Simplify right side
    1,288,636.58x = 1,311,441,696,874.27
  5. Step 5: Solve for x
    x = 1,311,441,696,874.27/1,288,636.58
  6. Step 6: Final answer
    x = 1,017,697.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.