Home / 1,652,969.38-2,478,490.68-640,909

Finding the Fourth Proportional to 1,652,969.38, 2,478,490.68 and 640,909

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Solution

The fourth proportional to 1,652,969.38, 2,478,490.68 and 640,909 is: 960,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652,969.38 : 2,478,490.68 = 640,909 : x
  2. Step 2: Convert to fraction form
    1,652,969.38/2,478,490.68 = 640,909/x
  3. Step 3: Cross multiply
    1,652,969.38x = 2,478,490.68 × 640,909
  4. Step 4: Simplify right side
    1,652,969.38x = 1,588,486,983,228.12
  5. Step 5: Solve for x
    x = 1,588,486,983,228.12/1,652,969.38
  6. Step 6: Final answer
    x = 960,989.96

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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.