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Finding the Fourth Proportional to 572,611.60, 858,917.40 and 520,080.40

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Solution

The fourth proportional to 572,611.60, 858,917.40 and 520,080.40 is: 780,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,611.60 : 858,917.40 = 520,080.40 : x
  2. Step 2: Convert to fraction form
    572,611.60/858,917.40 = 520,080.40/x
  3. Step 3: Cross multiply
    572,611.60x = 858,917.40 × 520,080.40
  4. Step 4: Simplify right side
    572,611.60x = 446,706,104,958.96
  5. Step 5: Solve for x
    x = 446,706,104,958.96/572,611.60
  6. Step 6: Final answer
    x = 780,120.60

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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.