Home / 558,661.41-771,035.78-329,145.31

Finding the Fourth Proportional to 558,661.41, 771,035.78 and 329,145.31

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Solution

The fourth proportional to 558,661.41, 771,035.78 and 329,145.31 is: 454,269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,661.41 : 771,035.78 = 329,145.31 : x
  2. Step 2: Convert to fraction form
    558,661.41/771,035.78 = 329,145.31/x
  3. Step 3: Cross multiply
    558,661.41x = 771,035.78 × 329,145.31
  4. Step 4: Simplify right side
    558,661.41x = 253,782,810,829.19
  5. Step 5: Solve for x
    x = 253,782,810,829.19/558,661.41
  6. Step 6: Final answer
    x = 454,269.45

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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.