Home / 811,505.52-1,217,780.52-437,786.48

Finding the Fourth Proportional to 811,505.52, 1,217,780.52 and 437,786.48

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Solution

The fourth proportional to 811,505.52, 1,217,780.52 and 437,786.48 is: 656,961.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,505.52 : 1,217,780.52 = 437,786.48 : x
  2. Step 2: Convert to fraction form
    811,505.52/1,217,780.52 = 437,786.48/x
  3. Step 3: Cross multiply
    811,505.52x = 1,217,780.52 × 437,786.48
  4. Step 4: Simplify right side
    811,505.52x = 533,127,847,263.37
  5. Step 5: Solve for x
    x = 533,127,847,263.37/811,505.52
  6. Step 6: Final answer
    x = 656,961.46

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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.