Home / 1,081,221-1,620,256.84-519,599.40

Finding the Fourth Proportional to 1,081,221, 1,620,256.84 and 519,599.40

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Solution

The fourth proportional to 1,081,221, 1,620,256.84 and 519,599.40 is: 778,642.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,221 : 1,620,256.84 = 519,599.40 : x
  2. Step 2: Convert to fraction form
    1,081,221/1,620,256.84 = 519,599.40/x
  3. Step 3: Cross multiply
    1,081,221x = 1,620,256.84 × 519,599.40
  4. Step 4: Simplify right side
    1,081,221x = 841,884,481,909.90
  5. Step 5: Solve for x
    x = 841,884,481,909.90/1,081,221
  6. Step 6: Final answer
    x = 778,642.37

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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.