Home / 1,171,867.12-1,617,189.08-688,452.40

Finding the Fourth Proportional to 1,171,867.12, 1,617,189.08 and 688,452.40

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Solution

The fourth proportional to 1,171,867.12, 1,617,189.08 and 688,452.40 is: 950,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,867.12 : 1,617,189.08 = 688,452.40 : x
  2. Step 2: Convert to fraction form
    1,171,867.12/1,617,189.08 = 688,452.40/x
  3. Step 3: Cross multiply
    1,171,867.12x = 1,617,189.08 × 688,452.40
  4. Step 4: Simplify right side
    1,171,867.12x = 1,113,357,703,379.79
  5. Step 5: Solve for x
    x = 1,113,357,703,379.79/1,171,867.12
  6. Step 6: Final answer
    x = 950,071.63

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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.