Home / 452,420.51-678,630.19-115,461.17

Finding the Fourth Proportional to 452,420.51, 678,630.19 and 115,461.17

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Solution

The fourth proportional to 452,420.51, 678,630.19 and 115,461.17 is: 173,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,420.51 : 678,630.19 = 115,461.17 : x
  2. Step 2: Convert to fraction form
    452,420.51/678,630.19 = 115,461.17/x
  3. Step 3: Cross multiply
    452,420.51x = 678,630.19 × 115,461.17
  4. Step 4: Simplify right side
    452,420.51x = 78,355,435,734.72
  5. Step 5: Solve for x
    x = 78,355,435,734.72/452,420.51
  6. Step 6: Final answer
    x = 173,191.61

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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.