Home / 715,876.79-1,073,815.48-210,437.80

Finding the Fourth Proportional to 715,876.79, 1,073,815.48 and 210,437.80

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Solution

The fourth proportional to 715,876.79, 1,073,815.48 and 210,437.80 is: 315,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,876.79 : 1,073,815.48 = 210,437.80 : x
  2. Step 2: Convert to fraction form
    715,876.79/1,073,815.48 = 210,437.80/x
  3. Step 3: Cross multiply
    715,876.79x = 1,073,815.48 × 210,437.80
  4. Step 4: Simplify right side
    715,876.79x = 225,971,364,795.65
  5. Step 5: Solve for x
    x = 225,971,364,795.65/715,876.79
  6. Step 6: Final answer
    x = 315,656.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.