Home / 805,522.40-1,111,649.44-442,973.84

Finding the Fourth Proportional to 805,522.40, 1,111,649.44 and 442,973.84

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Solution

The fourth proportional to 805,522.40, 1,111,649.44 and 442,973.84 is: 611,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,522.40 : 1,111,649.44 = 442,973.84 : x
  2. Step 2: Convert to fraction form
    805,522.40/1,111,649.44 = 442,973.84/x
  3. Step 3: Cross multiply
    805,522.40x = 1,111,649.44 × 442,973.84
  4. Step 4: Simplify right side
    805,522.40x = 492,431,618,945.24
  5. Step 5: Solve for x
    x = 492,431,618,945.24/805,522.40
  6. Step 6: Final answer
    x = 611,319.59

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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.