Home / 706,736.40-1,057,429.50-418,702.72

Finding the Fourth Proportional to 706,736.40, 1,057,429.50 and 418,702.72

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Solution

The fourth proportional to 706,736.40, 1,057,429.50 and 418,702.72 is: 626,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,736.40 : 1,057,429.50 = 418,702.72 : x
  2. Step 2: Convert to fraction form
    706,736.40/1,057,429.50 = 418,702.72/x
  3. Step 3: Cross multiply
    706,736.40x = 1,057,429.50 × 418,702.72
  4. Step 4: Simplify right side
    706,736.40x = 442,748,607,858.24
  5. Step 5: Solve for x
    x = 442,748,607,858.24/706,736.40
  6. Step 6: Final answer
    x = 626,469.23

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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.