Home / 558,855.40-771,207.78-304,205.80

Finding the Fourth Proportional to 558,855.40, 771,207.78 and 304,205.80

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Solution

The fourth proportional to 558,855.40, 771,207.78 and 304,205.80 is: 419,797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,855.40 : 771,207.78 = 304,205.80 : x
  2. Step 2: Convert to fraction form
    558,855.40/771,207.78 = 304,205.80/x
  3. Step 3: Cross multiply
    558,855.40x = 771,207.78 × 304,205.80
  4. Step 4: Simplify right side
    558,855.40x = 234,605,879,681.12
  5. Step 5: Solve for x
    x = 234,605,879,681.12/558,855.40
  6. Step 6: Final answer
    x = 419,797.11

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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.