Home / 765,333.12-1,055,806.33-493,488.34

Finding the Fourth Proportional to 765,333.12, 1,055,806.33 and 493,488.34

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Solution

The fourth proportional to 765,333.12, 1,055,806.33 and 493,488.34 is: 680,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,333.12 : 1,055,806.33 = 493,488.34 : x
  2. Step 2: Convert to fraction form
    765,333.12/1,055,806.33 = 493,488.34/x
  3. Step 3: Cross multiply
    765,333.12x = 1,055,806.33 × 493,488.34
  4. Step 4: Simplify right side
    765,333.12x = 521,028,113,153.19
  5. Step 5: Solve for x
    x = 521,028,113,153.19/765,333.12
  6. Step 6: Final answer
    x = 680,786.05

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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.