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Finding the Fourth Proportional to 579,690.40, 868,460.40 and 329,629.60

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Solution

The fourth proportional to 579,690.40, 868,460.40 and 329,629.60 is: 493,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,690.40 : 868,460.40 = 329,629.60 : x
  2. Step 2: Convert to fraction form
    579,690.40/868,460.40 = 329,629.60/x
  3. Step 3: Cross multiply
    579,690.40x = 868,460.40 × 329,629.60
  4. Step 4: Simplify right side
    579,690.40x = 286,270,254,267.84
  5. Step 5: Solve for x
    x = 286,270,254,267.84/579,690.40
  6. Step 6: Final answer
    x = 493,833.01

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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.