Home / 1,078,887.80-1,618,331.70-868,935.80

Finding the Fourth Proportional to 1,078,887.80, 1,618,331.70 and 868,935.80

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Solution

The fourth proportional to 1,078,887.80, 1,618,331.70 and 868,935.80 is: 1,303,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,887.80 : 1,618,331.70 = 868,935.80 : x
  2. Step 2: Convert to fraction form
    1,078,887.80/1,618,331.70 = 868,935.80/x
  3. Step 3: Cross multiply
    1,078,887.80x = 1,618,331.70 × 868,935.80
  4. Step 4: Simplify right side
    1,078,887.80x = 1,406,226,350,404.86
  5. Step 5: Solve for x
    x = 1,406,226,350,404.86/1,078,887.80
  6. Step 6: Final answer
    x = 1,303,403.70

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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.