Home / 1,140,287.78-1,709,250.66-938,487.80

Finding the Fourth Proportional to 1,140,287.78, 1,709,250.66 and 938,487.80

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Solution

The fourth proportional to 1,140,287.78, 1,709,250.66 and 938,487.80 is: 1,406,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,287.78 : 1,709,250.66 = 938,487.80 : x
  2. Step 2: Convert to fraction form
    1,140,287.78/1,709,250.66 = 938,487.80/x
  3. Step 3: Cross multiply
    1,140,287.78x = 1,709,250.66 × 938,487.80
  4. Step 4: Simplify right side
    1,140,287.78x = 1,604,110,883,005.69
  5. Step 5: Solve for x
    x = 1,604,110,883,005.69/1,140,287.78
  6. Step 6: Final answer
    x = 1,406,759.70

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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.