Home / 640,267.40-883,735.04-368,363.16

Finding the Fourth Proportional to 640,267.40, 883,735.04 and 368,363.16

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Solution

The fourth proportional to 640,267.40, 883,735.04 and 368,363.16 is: 508,436.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,267.40 : 883,735.04 = 368,363.16 : x
  2. Step 2: Convert to fraction form
    640,267.40/883,735.04 = 368,363.16/x
  3. Step 3: Cross multiply
    640,267.40x = 883,735.04 × 368,363.16
  4. Step 4: Simplify right side
    640,267.40x = 325,535,432,858.03
  5. Step 5: Solve for x
    x = 325,535,432,858.03/640,267.40
  6. Step 6: Final answer
    x = 508,436.68

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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.