Home / 916,839.69-1,376,164.62-688,340.57

Finding the Fourth Proportional to 916,839.69, 1,376,164.62 and 688,340.57

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Solution

The fourth proportional to 916,839.69, 1,376,164.62 and 688,340.57 is: 1,033,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,839.69 : 1,376,164.62 = 688,340.57 : x
  2. Step 2: Convert to fraction form
    916,839.69/1,376,164.62 = 688,340.57/x
  3. Step 3: Cross multiply
    916,839.69x = 1,376,164.62 × 688,340.57
  4. Step 4: Simplify right side
    916,839.69x = 947,269,932,063.81
  5. Step 5: Solve for x
    x = 947,269,932,063.81/916,839.69
  6. Step 6: Final answer
    x = 1,033,190.36

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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.