Home / 707,750.78-1,061,619.68-286,926.62

Finding the Fourth Proportional to 707,750.78, 1,061,619.68 and 286,926.62

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Solution

The fourth proportional to 707,750.78, 1,061,619.68 and 286,926.62 is: 430,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,750.78 : 1,061,619.68 = 286,926.62 : x
  2. Step 2: Convert to fraction form
    707,750.78/1,061,619.68 = 286,926.62/x
  3. Step 3: Cross multiply
    707,750.78x = 1,061,619.68 × 286,926.62
  4. Step 4: Simplify right side
    707,750.78x = 304,606,946,507.88
  5. Step 5: Solve for x
    x = 304,606,946,507.88/707,750.78
  6. Step 6: Final answer
    x = 430,387.30

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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.