Home / 930,830.40-1,395,917.55-331,811.10

Finding the Fourth Proportional to 930,830.40, 1,395,917.55 and 331,811.10

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Solution

The fourth proportional to 930,830.40, 1,395,917.55 and 331,811.10 is: 497,599.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,830.40 : 1,395,917.55 = 331,811.10 : x
  2. Step 2: Convert to fraction form
    930,830.40/1,395,917.55 = 331,811.10/x
  3. Step 3: Cross multiply
    930,830.40x = 1,395,917.55 × 331,811.10
  4. Step 4: Simplify right side
    930,830.40x = 463,180,937,774.81
  5. Step 5: Solve for x
    x = 463,180,937,774.81/930,830.40
  6. Step 6: Final answer
    x = 497,599.71

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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.