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Finding the Fourth Proportional to 640,088.37, 960,270.95 and 340,525.41

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Solution

The fourth proportional to 640,088.37, 960,270.95 and 340,525.41 is: 510,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,088.37 : 960,270.95 = 340,525.41 : x
  2. Step 2: Convert to fraction form
    640,088.37/960,270.95 = 340,525.41/x
  3. Step 3: Cross multiply
    640,088.37x = 960,270.95 × 340,525.41
  4. Step 4: Simplify right side
    640,088.37x = 326,996,658,959.84
  5. Step 5: Solve for x
    x = 326,996,658,959.84/640,088.37
  6. Step 6: Final answer
    x = 510,861.74

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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.