Home / 1,330,887.90-1,996,331.85-905,735.10

Finding the Fourth Proportional to 1,330,887.90, 1,996,331.85 and 905,735.10

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Solution

The fourth proportional to 1,330,887.90, 1,996,331.85 and 905,735.10 is: 1,358,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,887.90 : 1,996,331.85 = 905,735.10 : x
  2. Step 2: Convert to fraction form
    1,330,887.90/1,996,331.85 = 905,735.10/x
  3. Step 3: Cross multiply
    1,330,887.90x = 1,996,331.85 × 905,735.10
  4. Step 4: Simplify right side
    1,330,887.90x = 1,808,147,827,792.94
  5. Step 5: Solve for x
    x = 1,808,147,827,792.94/1,330,887.90
  6. Step 6: Final answer
    x = 1,358,602.65

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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.