Home / 812,265.16-1,218,003.02-407,283.39

Finding the Fourth Proportional to 812,265.16, 1,218,003.02 and 407,283.39

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Solution

The fourth proportional to 812,265.16, 1,218,003.02 and 407,283.39 is: 610,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,265.16 : 1,218,003.02 = 407,283.39 : x
  2. Step 2: Convert to fraction form
    812,265.16/1,218,003.02 = 407,283.39/x
  3. Step 3: Cross multiply
    812,265.16x = 1,218,003.02 × 407,283.39
  4. Step 4: Simplify right side
    812,265.16x = 496,072,390,889.41
  5. Step 5: Solve for x
    x = 496,072,390,889.41/812,265.16
  6. Step 6: Final answer
    x = 610,727.16

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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.