Home / 715,095.80-1,072,629.90-288,620.36

Finding the Fourth Proportional to 715,095.80, 1,072,629.90 and 288,620.36

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Solution

The fourth proportional to 715,095.80, 1,072,629.90 and 288,620.36 is: 432,924.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,095.80 : 1,072,629.90 = 288,620.36 : x
  2. Step 2: Convert to fraction form
    715,095.80/1,072,629.90 = 288,620.36/x
  3. Step 3: Cross multiply
    715,095.80x = 1,072,629.90 × 288,620.36
  4. Step 4: Simplify right side
    715,095.80x = 309,582,827,884.76
  5. Step 5: Solve for x
    x = 309,582,827,884.76/715,095.80
  6. Step 6: Final answer
    x = 432,924.97

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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.