Home / 558,990.97-771,477.27-317,351.77

Finding the Fourth Proportional to 558,990.97, 771,477.27 and 317,351.77

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Solution

The fourth proportional to 558,990.97, 771,477.27 and 317,351.77 is: 437,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,990.97 : 771,477.27 = 317,351.77 : x
  2. Step 2: Convert to fraction form
    558,990.97/771,477.27 = 317,351.77/x
  3. Step 3: Cross multiply
    558,990.97x = 771,477.27 × 317,351.77
  4. Step 4: Simplify right side
    558,990.97x = 244,829,677,149.27
  5. Step 5: Solve for x
    x = 244,829,677,149.27/558,990.97
  6. Step 6: Final answer
    x = 437,985.03

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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.