Home / 771,749.52-1,064,989.44-427,571.28

Finding the Fourth Proportional to 771,749.52, 1,064,989.44 and 427,571.28

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Solution

The fourth proportional to 771,749.52, 1,064,989.44 and 427,571.28 is: 590,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,749.52 : 1,064,989.44 = 427,571.28 : x
  2. Step 2: Convert to fraction form
    771,749.52/1,064,989.44 = 427,571.28/x
  3. Step 3: Cross multiply
    771,749.52x = 1,064,989.44 × 427,571.28
  4. Step 4: Simplify right side
    771,749.52x = 455,358,898,047.28
  5. Step 5: Solve for x
    x = 455,358,898,047.28/771,749.52
  6. Step 6: Final answer
    x = 590,034.57

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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.