Home / 693,148.74-1,039,841.35-309,036.97

Finding the Fourth Proportional to 693,148.74, 1,039,841.35 and 309,036.97

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Solution

The fourth proportional to 693,148.74, 1,039,841.35 and 309,036.97 is: 463,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,148.74 : 1,039,841.35 = 309,036.97 : x
  2. Step 2: Convert to fraction form
    693,148.74/1,039,841.35 = 309,036.97/x
  3. Step 3: Cross multiply
    693,148.74x = 1,039,841.35 × 309,036.97
  4. Step 4: Simplify right side
    693,148.74x = 321,349,420,611.92
  5. Step 5: Solve for x
    x = 321,349,420,611.92/693,148.74
  6. Step 6: Final answer
    x = 463,608.17

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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.