Home / 635,539.47-876,678.32-380,743.02

Finding the Fourth Proportional to 635,539.47, 876,678.32 and 380,743.02

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Solution

The fourth proportional to 635,539.47, 876,678.32 and 380,743.02 is: 525,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,539.47 : 876,678.32 = 380,743.02 : x
  2. Step 2: Convert to fraction form
    635,539.47/876,678.32 = 380,743.02/x
  3. Step 3: Cross multiply
    635,539.47x = 876,678.32 × 380,743.02
  4. Step 4: Simplify right side
    635,539.47x = 333,789,149,221.61
  5. Step 5: Solve for x
    x = 333,789,149,221.61/635,539.47
  6. Step 6: Final answer
    x = 525,206.01

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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.