Home / 1,293,042.02-1,784,270.25-720,135.50

Finding the Fourth Proportional to 1,293,042.02, 1,784,270.25 and 720,135.50

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Solution

The fourth proportional to 1,293,042.02, 1,784,270.25 and 720,135.50 is: 993,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,042.02 : 1,784,270.25 = 720,135.50 : x
  2. Step 2: Convert to fraction form
    1,293,042.02/1,784,270.25 = 720,135.50/x
  3. Step 3: Cross multiply
    1,293,042.02x = 1,784,270.25 × 720,135.50
  4. Step 4: Simplify right side
    1,293,042.02x = 1,284,916,339,697.52
  5. Step 5: Solve for x
    x = 1,284,916,339,697.52/1,293,042.02
  6. Step 6: Final answer
    x = 993,715.85

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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.