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Finding the Fourth Proportional to 572,665.80, 858,998.70 and 540,006.60

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Solution

The fourth proportional to 572,665.80, 858,998.70 and 540,006.60 is: 810,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,665.80 : 858,998.70 = 540,006.60 : x
  2. Step 2: Convert to fraction form
    572,665.80/858,998.70 = 540,006.60/x
  3. Step 3: Cross multiply
    572,665.80x = 858,998.70 × 540,006.60
  4. Step 4: Simplify right side
    572,665.80x = 463,864,967,391.42
  5. Step 5: Solve for x
    x = 463,864,967,391.42/572,665.80
  6. Step 6: Final answer
    x = 810,009.90

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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.