Home / 640,942.60-884,464.76-350,496.52

Finding the Fourth Proportional to 640,942.60, 884,464.76 and 350,496.52

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Solution

The fourth proportional to 640,942.60, 884,464.76 and 350,496.52 is: 483,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,942.60 : 884,464.76 = 350,496.52 : x
  2. Step 2: Convert to fraction form
    640,942.60/884,464.76 = 350,496.52/x
  3. Step 3: Cross multiply
    640,942.60x = 884,464.76 × 350,496.52
  4. Step 4: Simplify right side
    640,942.60x = 310,001,820,442.64
  5. Step 5: Solve for x
    x = 310,001,820,442.64/640,942.60
  6. Step 6: Final answer
    x = 483,665.50

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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.