Home / 1,279,343.02-1,918,882.80-426,322.47

Finding the Fourth Proportional to 1,279,343.02, 1,918,882.80 and 426,322.47

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Solution

The fourth proportional to 1,279,343.02, 1,918,882.80 and 426,322.47 is: 639,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,343.02 : 1,918,882.80 = 426,322.47 : x
  2. Step 2: Convert to fraction form
    1,279,343.02/1,918,882.80 = 426,322.47/x
  3. Step 3: Cross multiply
    1,279,343.02x = 1,918,882.80 × 426,322.47
  4. Step 4: Simplify right side
    1,279,343.02x = 818,062,845,342.22
  5. Step 5: Solve for x
    x = 818,062,845,342.22/1,279,343.02
  6. Step 6: Final answer
    x = 639,439.80

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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.