Home / 821,551.20-1,232,326.80-289,672.80

Finding the Fourth Proportional to 821,551.20, 1,232,326.80 and 289,672.80

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Solution

The fourth proportional to 821,551.20, 1,232,326.80 and 289,672.80 is: 434,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,551.20 : 1,232,326.80 = 289,672.80 : x
  2. Step 2: Convert to fraction form
    821,551.20/1,232,326.80 = 289,672.80/x
  3. Step 3: Cross multiply
    821,551.20x = 1,232,326.80 × 289,672.80
  4. Step 4: Simplify right side
    821,551.20x = 356,971,554,671.04
  5. Step 5: Solve for x
    x = 356,971,554,671.04/821,551.20
  6. Step 6: Final answer
    x = 434,509.20

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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.