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Finding the Fourth Proportional to 706,877.80, 987,529.40 and 706,877.80

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Solution

The fourth proportional to 706,877.80, 987,529.40 and 706,877.80 is: 987,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,877.80 : 987,529.40 = 706,877.80 : x
  2. Step 2: Convert to fraction form
    706,877.80/987,529.40 = 706,877.80/x
  3. Step 3: Cross multiply
    706,877.80x = 987,529.40 × 706,877.80
  4. Step 4: Simplify right side
    706,877.80x = 698,062,609,707.32
  5. Step 5: Solve for x
    x = 698,062,609,707.32/706,877.80
  6. Step 6: Final answer
    x = 987,529.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.