Home / 1,389,442.80-2,083,645.80-547,820.40

Finding the Fourth Proportional to 1,389,442.80, 2,083,645.80 and 547,820.40

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Solution

The fourth proportional to 1,389,442.80, 2,083,645.80 and 547,820.40 is: 821,526.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,442.80 : 2,083,645.80 = 547,820.40 : x
  2. Step 2: Convert to fraction form
    1,389,442.80/2,083,645.80 = 547,820.40/x
  3. Step 3: Cross multiply
    1,389,442.80x = 2,083,645.80 × 547,820.40
  4. Step 4: Simplify right side
    1,389,442.80x = 1,141,463,675,614.32
  5. Step 5: Solve for x
    x = 1,141,463,675,614.32/1,389,442.80
  6. Step 6: Final answer
    x = 821,526.21

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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.