Home / 1,171,830.70-1,617,139.04-688,416.22

Finding the Fourth Proportional to 1,171,830.70, 1,617,139.04 and 688,416.22

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Solution

The fourth proportional to 1,171,830.70, 1,617,139.04 and 688,416.22 is: 950,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,830.70 : 1,617,139.04 = 688,416.22 : x
  2. Step 2: Convert to fraction form
    1,171,830.70/1,617,139.04 = 688,416.22/x
  3. Step 3: Cross multiply
    1,171,830.70x = 1,617,139.04 × 688,416.22
  4. Step 4: Simplify right side
    1,171,830.70x = 1,113,264,745,131.23
  5. Step 5: Solve for x
    x = 1,113,264,745,131.23/1,171,830.70
  6. Step 6: Final answer
    x = 950,021.83

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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.