Home / 640,982.20-884,528.76-350,589.10

Finding the Fourth Proportional to 640,982.20, 884,528.76 and 350,589.10

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Solution

The fourth proportional to 640,982.20, 884,528.76 and 350,589.10 is: 483,798.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,982.20 : 884,528.76 = 350,589.10 : x
  2. Step 2: Convert to fraction form
    640,982.20/884,528.76 = 350,589.10/x
  3. Step 3: Cross multiply
    640,982.20x = 884,528.76 × 350,589.10
  4. Step 4: Simplify right side
    640,982.20x = 310,106,141,892.52
  5. Step 5: Solve for x
    x = 310,106,141,892.52/640,982.20
  6. Step 6: Final answer
    x = 483,798.37

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1.5x scale

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.