Home / 665,973.02-919,162.89-375,673.68

Finding the Fourth Proportional to 665,973.02, 919,162.89 and 375,673.68

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Solution

The fourth proportional to 665,973.02, 919,162.89 and 375,673.68 is: 518,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,973.02 : 919,162.89 = 375,673.68 : x
  2. Step 2: Convert to fraction form
    665,973.02/919,162.89 = 375,673.68/x
  3. Step 3: Cross multiply
    665,973.02x = 919,162.89 × 375,673.68
  4. Step 4: Simplify right side
    665,973.02x = 345,305,305,405.74
  5. Step 5: Solve for x
    x = 345,305,305,405.74/665,973.02
  6. Step 6: Final answer
    x = 518,497.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.