Home / 558,990.28-771,405.42-304,339.24

Finding the Fourth Proportional to 558,990.28, 771,405.42 and 304,339.24

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Solution

The fourth proportional to 558,990.28, 771,405.42 and 304,339.24 is: 419,987.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,990.28 : 771,405.42 = 304,339.24 : x
  2. Step 2: Convert to fraction form
    558,990.28/771,405.42 = 304,339.24/x
  3. Step 3: Cross multiply
    558,990.28x = 771,405.42 × 304,339.24
  4. Step 4: Simplify right side
    558,990.28x = 234,768,939,254.68
  5. Step 5: Solve for x
    x = 234,768,939,254.68/558,990.28
  6. Step 6: Final answer
    x = 419,987.52

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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.