Home / 917,717.24-1,266,466.38-515,323.64

Finding the Fourth Proportional to 917,717.24, 1,266,466.38 and 515,323.64

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Solution

The fourth proportional to 917,717.24, 1,266,466.38 and 515,323.64 is: 711,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,717.24 : 1,266,466.38 = 515,323.64 : x
  2. Step 2: Convert to fraction form
    917,717.24/1,266,466.38 = 515,323.64/x
  3. Step 3: Cross multiply
    917,717.24x = 1,266,466.38 × 515,323.64
  4. Step 4: Simplify right side
    917,717.24x = 652,640,064,879.22
  5. Step 5: Solve for x
    x = 652,640,064,879.22/917,717.24
  6. Step 6: Final answer
    x = 711,155.94

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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.