Home / 804,987.57-1,110,909.47-442,424.28

Finding the Fourth Proportional to 804,987.57, 1,110,909.47 and 442,424.28

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Solution

The fourth proportional to 804,987.57, 1,110,909.47 and 442,424.28 is: 610,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,987.57 : 1,110,909.47 = 442,424.28 : x
  2. Step 2: Convert to fraction form
    804,987.57/1,110,909.47 = 442,424.28/x
  3. Step 3: Cross multiply
    804,987.57x = 1,110,909.47 × 442,424.28
  4. Step 4: Simplify right side
    804,987.57x = 491,493,317,961.45
  5. Step 5: Solve for x
    x = 491,493,317,961.45/804,987.57
  6. Step 6: Final answer
    x = 610,560.14

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1.5x scale

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.