Home / 1,293,070.61-1,784,309.70-720,164.09

Finding the Fourth Proportional to 1,293,070.61, 1,784,309.70 and 720,164.09

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Solution

The fourth proportional to 1,293,070.61, 1,784,309.70 and 720,164.09 is: 993,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,070.61 : 1,784,309.70 = 720,164.09 : x
  2. Step 2: Convert to fraction form
    1,293,070.61/1,784,309.70 = 720,164.09/x
  3. Step 3: Cross multiply
    1,293,070.61x = 1,784,309.70 × 720,164.09
  4. Step 4: Simplify right side
    1,293,070.61x = 1,284,995,762,457.12
  5. Step 5: Solve for x
    x = 1,284,995,762,457.12/1,293,070.61
  6. Step 6: Final answer
    x = 993,755.30

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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.