Home / 1,009,405.30-1,392,940.82-556,696.30

Finding the Fourth Proportional to 1,009,405.30, 1,392,940.82 and 556,696.30

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Solution

The fourth proportional to 1,009,405.30, 1,392,940.82 and 556,696.30 is: 768,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,405.30 : 1,392,940.82 = 556,696.30 : x
  2. Step 2: Convert to fraction form
    1,009,405.30/1,392,940.82 = 556,696.30/x
  3. Step 3: Cross multiply
    1,009,405.30x = 1,392,940.82 × 556,696.30
  4. Step 4: Simplify right side
    1,009,405.30x = 775,445,000,612.97
  5. Step 5: Solve for x
    x = 775,445,000,612.97/1,009,405.30
  6. Step 6: Final answer
    x = 768,219.66

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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.