Home / 1,645,140.80-2,468,632.80-698,350.40

Finding the Fourth Proportional to 1,645,140.80, 2,468,632.80 and 698,350.40

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Solution

The fourth proportional to 1,645,140.80, 2,468,632.80 and 698,350.40 is: 1,047,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,140.80 : 2,468,632.80 = 698,350.40 : x
  2. Step 2: Convert to fraction form
    1,645,140.80/2,468,632.80 = 698,350.40/x
  3. Step 3: Cross multiply
    1,645,140.80x = 2,468,632.80 × 698,350.40
  4. Step 4: Simplify right side
    1,645,140.80x = 1,723,970,703,333.12
  5. Step 5: Solve for x
    x = 1,723,970,703,333.12/1,645,140.80
  6. Step 6: Final answer
    x = 1,047,916.81

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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.