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Finding the Fourth Proportional to 640,090.37, 960,273.95 and 340,527.41

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Solution

The fourth proportional to 640,090.37, 960,273.95 and 340,527.41 is: 510,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,090.37 : 960,273.95 = 340,527.41 : x
  2. Step 2: Convert to fraction form
    640,090.37/960,273.95 = 340,527.41/x
  3. Step 3: Cross multiply
    640,090.37x = 960,273.95 × 340,527.41
  4. Step 4: Simplify right side
    640,090.37x = 326,999,601,083.97
  5. Step 5: Solve for x
    x = 326,999,601,083.97/640,090.37
  6. Step 6: Final answer
    x = 510,864.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.