Home / 899,015.28-1,240,678.86-517,042.44

Finding the Fourth Proportional to 899,015.28, 1,240,678.86 and 517,042.44

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Solution

The fourth proportional to 899,015.28, 1,240,678.86 and 517,042.44 is: 713,540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,015.28 : 1,240,678.86 = 517,042.44 : x
  2. Step 2: Convert to fraction form
    899,015.28/1,240,678.86 = 517,042.44/x
  3. Step 3: Cross multiply
    899,015.28x = 1,240,678.86 × 517,042.44
  4. Step 4: Simplify right side
    899,015.28x = 641,483,625,030.82
  5. Step 5: Solve for x
    x = 641,483,625,030.82/899,015.28
  6. Step 6: Final answer
    x = 713,540.29

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1.5x scale

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.