Home / 640,386.10-883,735.55-350,003.53

Finding the Fourth Proportional to 640,386.10, 883,735.55 and 350,003.53

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Solution

The fourth proportional to 640,386.10, 883,735.55 and 350,003.53 is: 483,006.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,386.10 : 883,735.55 = 350,003.53 : x
  2. Step 2: Convert to fraction form
    640,386.10/883,735.55 = 350,003.53/x
  3. Step 3: Cross multiply
    640,386.10x = 883,735.55 × 350,003.53
  4. Step 4: Simplify right side
    640,386.10x = 309,310,562,086.49
  5. Step 5: Solve for x
    x = 309,310,562,086.49/640,386.10
  6. Step 6: Final answer
    x = 483,006.36

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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.