Home / 939,811.40-1,296,940.90-510,091.64

Finding the Fourth Proportional to 939,811.40, 1,296,940.90 and 510,091.64

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Solution

The fourth proportional to 939,811.40, 1,296,940.90 and 510,091.64 is: 703,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,811.40 : 1,296,940.90 = 510,091.64 : x
  2. Step 2: Convert to fraction form
    939,811.40/1,296,940.90 = 510,091.64/x
  3. Step 3: Cross multiply
    939,811.40x = 1,296,940.90 × 510,091.64
  4. Step 4: Simplify right side
    939,811.40x = 661,558,710,664.08
  5. Step 5: Solve for x
    x = 661,558,710,664.08/939,811.40
  6. Step 6: Final answer
    x = 703,927.10

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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.