Home / 878,956.80-1,212,985.96-496,975.36

Finding the Fourth Proportional to 878,956.80, 1,212,985.96 and 496,975.36

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Solution

The fourth proportional to 878,956.80, 1,212,985.96 and 496,975.36 is: 685,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,956.80 : 1,212,985.96 = 496,975.36 : x
  2. Step 2: Convert to fraction form
    878,956.80/1,212,985.96 = 496,975.36/x
  3. Step 3: Cross multiply
    878,956.80x = 1,212,985.96 × 496,975.36
  4. Step 4: Simplify right side
    878,956.80x = 602,824,134,145.95
  5. Step 5: Solve for x
    x = 602,824,134,145.95/878,956.80
  6. Step 6: Final answer
    x = 685,840.46

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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.