Home / 811,240.43-1,216,505.65-384,897.88

Finding the Fourth Proportional to 811,240.43, 1,216,505.65 and 384,897.88

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Solution

The fourth proportional to 811,240.43, 1,216,505.65 and 384,897.88 is: 577,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,240.43 : 1,216,505.65 = 384,897.88 : x
  2. Step 2: Convert to fraction form
    811,240.43/1,216,505.65 = 384,897.88/x
  3. Step 3: Cross multiply
    811,240.43x = 1,216,505.65 × 384,897.88
  4. Step 4: Simplify right side
    811,240.43x = 468,230,440,671.53
  5. Step 5: Solve for x
    x = 468,230,440,671.53/811,240.43
  6. Step 6: Final answer
    x = 577,178.39

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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.