Home / 765,336.15-1,055,810.49-493,491.36

Finding the Fourth Proportional to 765,336.15, 1,055,810.49 and 493,491.36

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Solution

The fourth proportional to 765,336.15, 1,055,810.49 and 493,491.36 is: 680,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,336.15 : 1,055,810.49 = 493,491.36 : x
  2. Step 2: Convert to fraction form
    765,336.15/1,055,810.49 = 493,491.36/x
  3. Step 3: Cross multiply
    765,336.15x = 1,055,810.49 × 493,491.36
  4. Step 4: Simplify right side
    765,336.15x = 521,033,354,612.37
  5. Step 5: Solve for x
    x = 521,033,354,612.37/765,336.15
  6. Step 6: Final answer
    x = 680,790.21

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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.