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Finding the Fourth Proportional to 572,533.80, 858,800.70 and 320,591.40

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Solution

The fourth proportional to 572,533.80, 858,800.70 and 320,591.40 is: 480,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,533.80 : 858,800.70 = 320,591.40 : x
  2. Step 2: Convert to fraction form
    572,533.80/858,800.70 = 320,591.40/x
  3. Step 3: Cross multiply
    572,533.80x = 858,800.70 × 320,591.40
  4. Step 4: Simplify right side
    572,533.80x = 275,324,118,733.98
  5. Step 5: Solve for x
    x = 275,324,118,733.98/572,533.80
  6. Step 6: Final answer
    x = 480,887.10

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Similar ratio
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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.