Home / 762,661.86-1,052,470.48-418,503.55

Finding the Fourth Proportional to 762,661.86, 1,052,470.48 and 418,503.55

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Solution

The fourth proportional to 762,661.86, 1,052,470.48 and 418,503.55 is: 577,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,661.86 : 1,052,470.48 = 418,503.55 : x
  2. Step 2: Convert to fraction form
    762,661.86/1,052,470.48 = 418,503.55/x
  3. Step 3: Cross multiply
    762,661.86x = 1,052,470.48 × 418,503.55
  4. Step 4: Simplify right side
    762,661.86x = 440,462,635,608.84
  5. Step 5: Solve for x
    x = 440,462,635,608.84/762,661.86
  6. Step 6: Final answer
    x = 577,533.32

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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.