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Finding the Fourth Proportional to 521,106.40, 781,659.60 and 463,045.60

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Solution

The fourth proportional to 521,106.40, 781,659.60 and 463,045.60 is: 694,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,106.40 : 781,659.60 = 463,045.60 : x
  2. Step 2: Convert to fraction form
    521,106.40/781,659.60 = 463,045.60/x
  3. Step 3: Cross multiply
    521,106.40x = 781,659.60 × 463,045.60
  4. Step 4: Simplify right side
    521,106.40x = 361,944,038,477.76
  5. Step 5: Solve for x
    x = 361,944,038,477.76/521,106.40
  6. Step 6: Final answer
    x = 694,568.40

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Similar ratio
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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.