Home / 1,178,689.07-1,626,597.42-688,687.36

Finding the Fourth Proportional to 1,178,689.07, 1,626,597.42 and 688,687.36

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Solution

The fourth proportional to 1,178,689.07, 1,626,597.42 and 688,687.36 is: 950,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,689.07 : 1,626,597.42 = 688,687.36 : x
  2. Step 2: Convert to fraction form
    1,178,689.07/1,626,597.42 = 688,687.36/x
  3. Step 3: Cross multiply
    1,178,689.07x = 1,626,597.42 × 688,687.36
  4. Step 4: Simplify right side
    1,178,689.07x = 1,120,217,085,463.15
  5. Step 5: Solve for x
    x = 1,120,217,085,463.15/1,178,689.07
  6. Step 6: Final answer
    x = 950,392.36

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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.