Home / 939,858.59-1,297,005.90-510,138.60

Finding the Fourth Proportional to 939,858.59, 1,297,005.90 and 510,138.60

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Solution

The fourth proportional to 939,858.59, 1,297,005.90 and 510,138.60 is: 703,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,858.59 : 1,297,005.90 = 510,138.60 : x
  2. Step 2: Convert to fraction form
    939,858.59/1,297,005.90 = 510,138.60/x
  3. Step 3: Cross multiply
    939,858.59x = 1,297,005.90 × 510,138.60
  4. Step 4: Simplify right side
    939,858.59x = 661,652,774,017.74
  5. Step 5: Solve for x
    x = 661,652,774,017.74/939,858.59
  6. Step 6: Final answer
    x = 703,991.84

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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.