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Finding the Fourth Proportional to 706,904.32, 976,116.54 and 655,618.36

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Solution

The fourth proportional to 706,904.32, 976,116.54 and 655,618.36 is: 905,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,904.32 : 976,116.54 = 655,618.36 : x
  2. Step 2: Convert to fraction form
    706,904.32/976,116.54 = 655,618.36/x
  3. Step 3: Cross multiply
    706,904.32x = 976,116.54 × 655,618.36
  4. Step 4: Simplify right side
    706,904.32x = 639,959,925,123.68
  5. Step 5: Solve for x
    x = 639,959,925,123.68/706,904.32
  6. Step 6: Final answer
    x = 905,299.21

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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.