Home / 1,284,402.40-1,926,020.40-485,418.40

Finding the Fourth Proportional to 1,284,402.40, 1,926,020.40 and 485,418.40

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Solution

The fourth proportional to 1,284,402.40, 1,926,020.40 and 485,418.40 is: 727,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,402.40 : 1,926,020.40 = 485,418.40 : x
  2. Step 2: Convert to fraction form
    1,284,402.40/1,926,020.40 = 485,418.40/x
  3. Step 3: Cross multiply
    1,284,402.40x = 1,926,020.40 × 485,418.40
  4. Step 4: Simplify right side
    1,284,402.40x = 934,925,740,935.36
  5. Step 5: Solve for x
    x = 934,925,740,935.36/1,284,402.40
  6. Step 6: Final answer
    x = 727,907.19

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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.