Home / 812,614.55-1,219,262.05-356,970.78

Finding the Fourth Proportional to 812,614.55, 1,219,262.05 and 356,970.78

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Solution

The fourth proportional to 812,614.55, 1,219,262.05 and 356,970.78 is: 535,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,614.55 : 1,219,262.05 = 356,970.78 : x
  2. Step 2: Convert to fraction form
    812,614.55/1,219,262.05 = 356,970.78/x
  3. Step 3: Cross multiply
    812,614.55x = 1,219,262.05 × 356,970.78
  4. Step 4: Simplify right side
    812,614.55x = 435,240,925,459.11
  5. Step 5: Solve for x
    x = 435,240,925,459.11/812,614.55
  6. Step 6: Final answer
    x = 535,605.63

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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.