Home / 640,387.10-883,736.93-350,004.53

Finding the Fourth Proportional to 640,387.10, 883,736.93 and 350,004.53

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Solution

The fourth proportional to 640,387.10, 883,736.93 and 350,004.53 is: 483,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,387.10 : 883,736.93 = 350,004.53 : x
  2. Step 2: Convert to fraction form
    640,387.10/883,736.93 = 350,004.53/x
  3. Step 3: Cross multiply
    640,387.10x = 883,736.93 × 350,004.53
  4. Step 4: Simplify right side
    640,387.10x = 309,311,928,828.29
  5. Step 5: Solve for x
    x = 309,311,928,828.29/640,387.10
  6. Step 6: Final answer
    x = 483,007.74

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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.