Home / 920,726.30-1,270,162.24-715,371.87

Finding the Fourth Proportional to 920,726.30, 1,270,162.24 and 715,371.87

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Solution

The fourth proportional to 920,726.30, 1,270,162.24 and 715,371.87 is: 986,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,726.30 : 1,270,162.24 = 715,371.87 : x
  2. Step 2: Convert to fraction form
    920,726.30/1,270,162.24 = 715,371.87/x
  3. Step 3: Cross multiply
    920,726.30x = 1,270,162.24 × 715,371.87
  4. Step 4: Simplify right side
    920,726.30x = 908,638,332,662.21
  5. Step 5: Solve for x
    x = 908,638,332,662.21/920,726.30
  6. Step 6: Final answer
    x = 986,871.27

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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.