Home / 839,262.51-1,257,997.42-478,657.02

Finding the Fourth Proportional to 839,262.51, 1,257,997.42 and 478,657.02

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Solution

The fourth proportional to 839,262.51, 1,257,997.42 and 478,657.02 is: 717,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,262.51 : 1,257,997.42 = 478,657.02 : x
  2. Step 2: Convert to fraction form
    839,262.51/1,257,997.42 = 478,657.02/x
  3. Step 3: Cross multiply
    839,262.51x = 1,257,997.42 × 478,657.02
  4. Step 4: Simplify right side
    839,262.51x = 602,149,296,224.89
  5. Step 5: Solve for x
    x = 602,149,296,224.89/839,262.51
  6. Step 6: Final answer
    x = 717,474.32

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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.