Home / 917,707.70-1,375,890.51-617,441.78

Finding the Fourth Proportional to 917,707.70, 1,375,890.51 and 617,441.78

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Solution

The fourth proportional to 917,707.70, 1,375,890.51 and 617,441.78 is: 925,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,707.70 : 1,375,890.51 = 617,441.78 : x
  2. Step 2: Convert to fraction form
    917,707.70/1,375,890.51 = 617,441.78/x
  3. Step 3: Cross multiply
    917,707.70x = 1,375,890.51 × 617,441.78
  4. Step 4: Simplify right side
    917,707.70x = 849,532,285,579.51
  5. Step 5: Solve for x
    x = 849,532,285,579.51/917,707.70
  6. Step 6: Final answer
    x = 925,711.19

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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.