Home / 788,291.20-1,087,842.90-448,759

Finding the Fourth Proportional to 788,291.20, 1,087,842.90 and 448,759

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Solution

The fourth proportional to 788,291.20, 1,087,842.90 and 448,759 is: 619,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,291.20 : 1,087,842.90 = 448,759 : x
  2. Step 2: Convert to fraction form
    788,291.20/1,087,842.90 = 448,759/x
  3. Step 3: Cross multiply
    788,291.20x = 1,087,842.90 × 448,759
  4. Step 4: Simplify right side
    788,291.20x = 488,179,291,961.10
  5. Step 5: Solve for x
    x = 488,179,291,961.10/788,291.20
  6. Step 6: Final answer
    x = 619,288.01

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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.