Home / 1,680,421.14-2,520,618.75-418,240.26

Finding the Fourth Proportional to 1,680,421.14, 2,520,618.75 and 418,240.26

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Solution

The fourth proportional to 1,680,421.14, 2,520,618.75 and 418,240.26 is: 627,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,421.14 : 2,520,618.75 = 418,240.26 : x
  2. Step 2: Convert to fraction form
    1,680,421.14/2,520,618.75 = 418,240.26/x
  3. Step 3: Cross multiply
    1,680,421.14x = 2,520,618.75 × 418,240.26
  4. Step 4: Simplify right side
    1,680,421.14x = 1,054,224,241,360.88
  5. Step 5: Solve for x
    x = 1,054,224,241,360.88/1,680,421.14
  6. Step 6: Final answer
    x = 627,357.16

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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.