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Finding the Fourth Proportional to 706,696.50, 975,087.09 and 400,703.79

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Solution

The fourth proportional to 706,696.50, 975,087.09 and 400,703.79 is: 552,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,696.50 : 975,087.09 = 400,703.79 : x
  2. Step 2: Convert to fraction form
    706,696.50/975,087.09 = 400,703.79/x
  3. Step 3: Cross multiply
    706,696.50x = 975,087.09 × 400,703.79
  4. Step 4: Simplify right side
    706,696.50x = 390,721,092,543.07
  5. Step 5: Solve for x
    x = 390,721,092,543.07/706,696.50
  6. Step 6: Final answer
    x = 552,883.87

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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.