Home / 1,349,125.74-1,861,865.60-776,253.24

Finding the Fourth Proportional to 1,349,125.74, 1,861,865.60 and 776,253.24

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Solution

The fourth proportional to 1,349,125.74, 1,861,865.60 and 776,253.24 is: 1,071,270.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,125.74 : 1,861,865.60 = 776,253.24 : x
  2. Step 2: Convert to fraction form
    1,349,125.74/1,861,865.60 = 776,253.24/x
  3. Step 3: Cross multiply
    1,349,125.74x = 1,861,865.60 × 776,253.24
  4. Step 4: Simplify right side
    1,349,125.74x = 1,445,279,200,563.28
  5. Step 5: Solve for x
    x = 1,445,279,200,563.28/1,349,125.74
  6. Step 6: Final answer
    x = 1,071,270.94

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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.