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Finding the Fourth Proportional to 524,489.40, 786,150.90 and 288,001.80

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Solution

The fourth proportional to 524,489.40, 786,150.90 and 288,001.80 is: 431,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,489.40 : 786,150.90 = 288,001.80 : x
  2. Step 2: Convert to fraction form
    524,489.40/786,150.90 = 288,001.80/x
  3. Step 3: Cross multiply
    524,489.40x = 786,150.90 × 288,001.80
  4. Step 4: Simplify right side
    524,489.40x = 226,412,874,271.62
  5. Step 5: Solve for x
    x = 226,412,874,271.62/524,489.40
  6. Step 6: Final answer
    x = 431,682.46

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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.