Home / 1,680,448.64-2,520,660-418,267.84

Finding the Fourth Proportional to 1,680,448.64, 2,520,660 and 418,267.84

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Solution

The fourth proportional to 1,680,448.64, 2,520,660 and 418,267.84 is: 627,398.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,448.64 : 2,520,660 = 418,267.84 : x
  2. Step 2: Convert to fraction form
    1,680,448.64/2,520,660 = 418,267.84/x
  3. Step 3: Cross multiply
    1,680,448.64x = 2,520,660 × 418,267.84
  4. Step 4: Simplify right side
    1,680,448.64x = 1,054,311,013,574.40
  5. Step 5: Solve for x
    x = 1,054,311,013,574.40/1,680,448.64
  6. Step 6: Final answer
    x = 627,398.53

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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.