Home / 715,094.80-1,072,628.40-288,619.36

Finding the Fourth Proportional to 715,094.80, 1,072,628.40 and 288,619.36

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Solution

The fourth proportional to 715,094.80, 1,072,628.40 and 288,619.36 is: 432,923.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,094.80 : 1,072,628.40 = 288,619.36 : x
  2. Step 2: Convert to fraction form
    715,094.80/1,072,628.40 = 288,619.36/x
  3. Step 3: Cross multiply
    715,094.80x = 1,072,628.40 × 288,619.36
  4. Step 4: Simplify right side
    715,094.80x = 309,581,322,325.82
  5. Step 5: Solve for x
    x = 309,581,322,325.82/715,094.80
  6. Step 6: Final answer
    x = 432,923.47

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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.