Home / 889,672.80-1,334,509.20-409,899.68

Finding the Fourth Proportional to 889,672.80, 1,334,509.20 and 409,899.68

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Solution

The fourth proportional to 889,672.80, 1,334,509.20 and 409,899.68 is: 614,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,672.80 : 1,334,509.20 = 409,899.68 : x
  2. Step 2: Convert to fraction form
    889,672.80/1,334,509.20 = 409,899.68/x
  3. Step 3: Cross multiply
    889,672.80x = 1,334,509.20 × 409,899.68
  4. Step 4: Simplify right side
    889,672.80x = 547,014,887,364.51
  5. Step 5: Solve for x
    x = 547,014,887,364.51/889,672.80
  6. Step 6: Final answer
    x = 614,849.51

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Similar ratio
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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.