Home / 839,261.51-1,257,995.92-478,656.02

Finding the Fourth Proportional to 839,261.51, 1,257,995.92 and 478,656.02

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Solution

The fourth proportional to 839,261.51, 1,257,995.92 and 478,656.02 is: 717,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,261.51 : 1,257,995.92 = 478,656.02 : x
  2. Step 2: Convert to fraction form
    839,261.51/1,257,995.92 = 478,656.02/x
  3. Step 3: Cross multiply
    839,261.51x = 1,257,995.92 × 478,656.02
  4. Step 4: Simplify right side
    839,261.51x = 602,147,316,161.80
  5. Step 5: Solve for x
    x = 602,147,316,161.80/839,261.51
  6. Step 6: Final answer
    x = 717,472.82

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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.