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Finding the Fourth Proportional to 706,859.82, 976,055.15 and 655,573.86

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Solution

The fourth proportional to 706,859.82, 976,055.15 and 655,573.86 is: 905,237.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,859.82 : 976,055.15 = 655,573.86 : x
  2. Step 2: Convert to fraction form
    706,859.82/976,055.15 = 655,573.86/x
  3. Step 3: Cross multiply
    706,859.82x = 976,055.15 × 655,573.86
  4. Step 4: Simplify right side
    706,859.82x = 639,876,238,980.51
  5. Step 5: Solve for x
    x = 639,876,238,980.51/706,859.82
  6. Step 6: Final answer
    x = 905,237.82

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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.