Home / 768,139.60-1,151,237.40-294,192.40

Finding the Fourth Proportional to 768,139.60, 1,151,237.40 and 294,192.40

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Solution

The fourth proportional to 768,139.60, 1,151,237.40 and 294,192.40 is: 440,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,139.60 : 1,151,237.40 = 294,192.40 : x
  2. Step 2: Convert to fraction form
    768,139.60/1,151,237.40 = 294,192.40/x
  3. Step 3: Cross multiply
    768,139.60x = 1,151,237.40 × 294,192.40
  4. Step 4: Simplify right side
    768,139.60x = 338,685,293,675.76
  5. Step 5: Solve for x
    x = 338,685,293,675.76/768,139.60
  6. Step 6: Final answer
    x = 440,916.33

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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.