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Finding the Fourth Proportional to 640,300.06, 960,616.14 and 340,534.15

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Solution

The fourth proportional to 640,300.06, 960,616.14 and 340,534.15 is: 510,889.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,300.06 : 960,616.14 = 340,534.15 : x
  2. Step 2: Convert to fraction form
    640,300.06/960,616.14 = 340,534.15/x
  3. Step 3: Cross multiply
    640,300.06x = 960,616.14 × 340,534.15
  4. Step 4: Simplify right side
    640,300.06x = 327,122,598,309.64
  5. Step 5: Solve for x
    x = 327,122,598,309.64/640,300.06
  6. Step 6: Final answer
    x = 510,889.53

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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.