Home / 1,260,340.10-1,890,740.55-512,461.70

Finding the Fourth Proportional to 1,260,340.10, 1,890,740.55 and 512,461.70

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Solution

The fourth proportional to 1,260,340.10, 1,890,740.55 and 512,461.70 is: 768,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,340.10 : 1,890,740.55 = 512,461.70 : x
  2. Step 2: Convert to fraction form
    1,260,340.10/1,890,740.55 = 512,461.70/x
  3. Step 3: Cross multiply
    1,260,340.10x = 1,890,740.55 × 512,461.70
  4. Step 4: Simplify right side
    1,260,340.10x = 968,932,116,511.94
  5. Step 5: Solve for x
    x = 968,932,116,511.94/1,260,340.10
  6. Step 6: Final answer
    x = 768,786.23

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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.