Home / 1,205,239.44-1,663,225.86-661,384.32

Finding the Fourth Proportional to 1,205,239.44, 1,663,225.86 and 661,384.32

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Solution

The fourth proportional to 1,205,239.44, 1,663,225.86 and 661,384.32 is: 912,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,239.44 : 1,663,225.86 = 661,384.32 : x
  2. Step 2: Convert to fraction form
    1,205,239.44/1,663,225.86 = 661,384.32/x
  3. Step 3: Cross multiply
    1,205,239.44x = 1,663,225.86 × 661,384.32
  4. Step 4: Simplify right side
    1,205,239.44x = 1,100,031,504,422.52
  5. Step 5: Solve for x
    x = 1,100,031,504,422.52/1,205,239.44
  6. Step 6: Final answer
    x = 912,707.86

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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.