Home / 572,538.20-858,807.30-320,595.80

Finding the Fourth Proportional to 572,538.20, 858,807.30 and 320,595.80

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Solution

The fourth proportional to 572,538.20, 858,807.30 and 320,595.80 is: 480,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,538.20 : 858,807.30 = 320,595.80 : x
  2. Step 2: Convert to fraction form
    572,538.20/858,807.30 = 320,595.80/x
  3. Step 3: Cross multiply
    572,538.20x = 858,807.30 × 320,595.80
  4. Step 4: Simplify right side
    572,538.20x = 275,330,013,389.34
  5. Step 5: Solve for x
    x = 275,330,013,389.34/572,538.20
  6. Step 6: Final answer
    x = 480,893.70

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Double scale
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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.