Home / 802,302.72-1,107,177.60-439,738.22

Finding the Fourth Proportional to 802,302.72, 1,107,177.60 and 439,738.22

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Solution

The fourth proportional to 802,302.72, 1,107,177.60 and 439,738.22 is: 606,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,302.72 : 1,107,177.60 = 439,738.22 : x
  2. Step 2: Convert to fraction form
    802,302.72/1,107,177.60 = 439,738.22/x
  3. Step 3: Cross multiply
    802,302.72x = 1,107,177.60 × 439,738.22
  4. Step 4: Simplify right side
    802,302.72x = 486,868,307,047.87
  5. Step 5: Solve for x
    x = 486,868,307,047.87/802,302.72
  6. Step 6: Final answer
    x = 606,838.66

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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.