Home / 1,279,316.73-1,918,333.35-426,088.41

Finding the Fourth Proportional to 1,279,316.73, 1,918,333.35 and 426,088.41

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Solution

The fourth proportional to 1,279,316.73, 1,918,333.35 and 426,088.41 is: 638,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,316.73 : 1,918,333.35 = 426,088.41 : x
  2. Step 2: Convert to fraction form
    1,279,316.73/1,918,333.35 = 426,088.41/x
  3. Step 3: Cross multiply
    1,279,316.73x = 1,918,333.35 × 426,088.41
  4. Step 4: Simplify right side
    1,279,316.73x = 817,379,606,951.47
  5. Step 5: Solve for x
    x = 817,379,606,951.47/1,279,316.73
  6. Step 6: Final answer
    x = 638,918.88

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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.