Home / 890,028.80-1,334,453.52-490,860.80

Finding the Fourth Proportional to 890,028.80, 1,334,453.52 and 490,860.80

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Solution

The fourth proportional to 890,028.80, 1,334,453.52 and 490,860.80 is: 735,965.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,028.80 : 1,334,453.52 = 490,860.80 : x
  2. Step 2: Convert to fraction form
    890,028.80/1,334,453.52 = 490,860.80/x
  3. Step 3: Cross multiply
    890,028.80x = 1,334,453.52 × 490,860.80
  4. Step 4: Simplify right side
    890,028.80x = 655,030,922,390.02
  5. Step 5: Solve for x
    x = 655,030,922,390.02/890,028.80
  6. Step 6: Final answer
    x = 735,965.98

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Double scale
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1.5x scale

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.