Home / 1,021,355.25-1,531,786.83-452,421.78

Finding the Fourth Proportional to 1,021,355.25, 1,531,786.83 and 452,421.78

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Solution

The fourth proportional to 1,021,355.25, 1,531,786.83 and 452,421.78 is: 678,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,355.25 : 1,531,786.83 = 452,421.78 : x
  2. Step 2: Convert to fraction form
    1,021,355.25/1,531,786.83 = 452,421.78/x
  3. Step 3: Cross multiply
    1,021,355.25x = 1,531,786.83 × 452,421.78
  4. Step 4: Simplify right side
    1,021,355.25x = 693,013,724,209.16
  5. Step 5: Solve for x
    x = 693,013,724,209.16/1,021,355.25
  6. Step 6: Final answer
    x = 678,523.68

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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.