Home / 917,707.20-1,375,889.76-617,441.28

Finding the Fourth Proportional to 917,707.20, 1,375,889.76 and 617,441.28

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Solution

The fourth proportional to 917,707.20, 1,375,889.76 and 617,441.28 is: 925,710.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,707.20 : 1,375,889.76 = 617,441.28 : x
  2. Step 2: Convert to fraction form
    917,707.20/1,375,889.76 = 617,441.28/x
  3. Step 3: Cross multiply
    917,707.20x = 1,375,889.76 × 617,441.28
  4. Step 4: Simplify right side
    917,707.20x = 849,531,134,553.29
  5. Step 5: Solve for x
    x = 849,531,134,553.29/917,707.20
  6. Step 6: Final answer
    x = 925,710.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.