Home / 920,876.01-1,270,847.18-512,977.74

Finding the Fourth Proportional to 920,876.01, 1,270,847.18 and 512,977.74

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Solution

The fourth proportional to 920,876.01, 1,270,847.18 and 512,977.74 is: 707,930.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,876.01 : 1,270,847.18 = 512,977.74 : x
  2. Step 2: Convert to fraction form
    920,876.01/1,270,847.18 = 512,977.74/x
  3. Step 3: Cross multiply
    920,876.01x = 1,270,847.18 × 512,977.74
  4. Step 4: Simplify right side
    920,876.01x = 651,916,308,874.87
  5. Step 5: Solve for x
    x = 651,916,308,874.87/920,876.01
  6. Step 6: Final answer
    x = 707,930.61

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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.