Home / 771,171.66-1,064,216.03-431,639.91

Finding the Fourth Proportional to 771,171.66, 1,064,216.03 and 431,639.91

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Solution

The fourth proportional to 771,171.66, 1,064,216.03 and 431,639.91 is: 595,662.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,171.66 : 1,064,216.03 = 431,639.91 : x
  2. Step 2: Convert to fraction form
    771,171.66/1,064,216.03 = 431,639.91/x
  3. Step 3: Cross multiply
    771,171.66x = 1,064,216.03 × 431,639.91
  4. Step 4: Simplify right side
    771,171.66x = 459,358,111,409.76
  5. Step 5: Solve for x
    x = 459,358,111,409.76/771,171.66
  6. Step 6: Final answer
    x = 595,662.59

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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.