Home / 640,985.20-884,532.90-350,592.10

Finding the Fourth Proportional to 640,985.20, 884,532.90 and 350,592.10

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Solution

The fourth proportional to 640,985.20, 884,532.90 and 350,592.10 is: 483,802.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,985.20 : 884,532.90 = 350,592.10 : x
  2. Step 2: Convert to fraction form
    640,985.20/884,532.90 = 350,592.10/x
  3. Step 3: Cross multiply
    640,985.20x = 884,532.90 × 350,592.10
  4. Step 4: Simplify right side
    640,985.20x = 310,110,246,930.09
  5. Step 5: Solve for x
    x = 310,110,246,930.09/640,985.20
  6. Step 6: Final answer
    x = 483,802.51

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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.