Home / 1,293,490.24-1,785,071.76-720,530.80

Finding the Fourth Proportional to 1,293,490.24, 1,785,071.76 and 720,530.80

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Solution

The fourth proportional to 1,293,490.24, 1,785,071.76 and 720,530.80 is: 994,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,490.24 : 1,785,071.76 = 720,530.80 : x
  2. Step 2: Convert to fraction form
    1,293,490.24/1,785,071.76 = 720,530.80/x
  3. Step 3: Cross multiply
    1,293,490.24x = 1,785,071.76 × 720,530.80
  4. Step 4: Simplify right side
    1,293,490.24x = 1,286,199,183,290.21
  5. Step 5: Solve for x
    x = 1,286,199,183,290.21/1,293,490.24
  6. Step 6: Final answer
    x = 994,363.27

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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.