Home / 851,384.15-1,173,689.34-669,780.66

Finding the Fourth Proportional to 851,384.15, 1,173,689.34 and 669,780.66

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Solution

The fourth proportional to 851,384.15, 1,173,689.34 and 669,780.66 is: 923,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,384.15 : 1,173,689.34 = 669,780.66 : x
  2. Step 2: Convert to fraction form
    851,384.15/1,173,689.34 = 669,780.66/x
  3. Step 3: Cross multiply
    851,384.15x = 1,173,689.34 × 669,780.66
  4. Step 4: Simplify right side
    851,384.15x = 786,114,420,780.17
  5. Step 5: Solve for x
    x = 786,114,420,780.17/851,384.15
  6. Step 6: Final answer
    x = 923,336.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.