Home / 1,645,212.80-2,468,740.80-698,422.40

Finding the Fourth Proportional to 1,645,212.80, 2,468,740.80 and 698,422.40

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Solution

The fourth proportional to 1,645,212.80, 2,468,740.80 and 698,422.40 is: 1,048,024.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,212.80 : 2,468,740.80 = 698,422.40 : x
  2. Step 2: Convert to fraction form
    1,645,212.80/2,468,740.80 = 698,422.40/x
  3. Step 3: Cross multiply
    1,645,212.80x = 2,468,740.80 × 698,422.40
  4. Step 4: Simplify right side
    1,645,212.80x = 1,724,223,874,513.92
  5. Step 5: Solve for x
    x = 1,724,223,874,513.92/1,645,212.80
  6. Step 6: Final answer
    x = 1,048,024.84

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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.