Home / 577,070.43-865,579.67-387,610.62

Finding the Fourth Proportional to 577,070.43, 865,579.67 and 387,610.62

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Solution

The fourth proportional to 577,070.43, 865,579.67 and 387,610.62 is: 581,398.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,070.43 : 865,579.67 = 387,610.62 : x
  2. Step 2: Convert to fraction form
    577,070.43/865,579.67 = 387,610.62/x
  3. Step 3: Cross multiply
    577,070.43x = 865,579.67 × 387,610.62
  4. Step 4: Simplify right side
    577,070.43x = 335,507,868,817.66
  5. Step 5: Solve for x
    x = 335,507,868,817.66/577,070.43
  6. Step 6: Final answer
    x = 581,398.48

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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.