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Finding the Fourth Proportional to 680,696.20, 940,656.18 and 510,635.08

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Solution

The fourth proportional to 680,696.20, 940,656.18 and 510,635.08 is: 705,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,696.20 : 940,656.18 = 510,635.08 : x
  2. Step 2: Convert to fraction form
    680,696.20/940,656.18 = 510,635.08/x
  3. Step 3: Cross multiply
    680,696.20x = 940,656.18 × 510,635.08
  4. Step 4: Simplify right side
    680,696.20x = 480,332,043,726.79
  5. Step 5: Solve for x
    x = 480,332,043,726.79/680,696.20
  6. Step 6: Final answer
    x = 705,648.19

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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.