Home / 712,885.21-1,068,977.89-352,639.83

Finding the Fourth Proportional to 712,885.21, 1,068,977.89 and 352,639.83

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Solution

The fourth proportional to 712,885.21, 1,068,977.89 and 352,639.83 is: 528,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,885.21 : 1,068,977.89 = 352,639.83 : x
  2. Step 2: Convert to fraction form
    712,885.21/1,068,977.89 = 352,639.83/x
  3. Step 3: Cross multiply
    712,885.21x = 1,068,977.89 × 352,639.83
  4. Step 4: Simplify right side
    712,885.21x = 376,964,181,403.36
  5. Step 5: Solve for x
    x = 376,964,181,403.36/712,885.21
  6. Step 6: Final answer
    x = 528,786.65

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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.