Home / 1,438,673.05-1,985,416.91-785,337.85

Finding the Fourth Proportional to 1,438,673.05, 1,985,416.91 and 785,337.85

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Solution

The fourth proportional to 1,438,673.05, 1,985,416.91 and 785,337.85 is: 1,083,792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,673.05 : 1,985,416.91 = 785,337.85 : x
  2. Step 2: Convert to fraction form
    1,438,673.05/1,985,416.91 = 785,337.85/x
  3. Step 3: Cross multiply
    1,438,673.05x = 1,985,416.91 × 785,337.85
  4. Step 4: Simplify right side
    1,438,673.05x = 1,559,223,047,453.04
  5. Step 5: Solve for x
    x = 1,559,223,047,453.04/1,438,673.05
  6. Step 6: Final answer
    x = 1,083,792.49

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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.