Home / 1,338,146-2,006,825.34-391,291.64

Finding the Fourth Proportional to 1,338,146, 2,006,825.34 and 391,291.64

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Solution

The fourth proportional to 1,338,146, 2,006,825.34 and 391,291.64 is: 586,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,146 : 2,006,825.34 = 391,291.64 : x
  2. Step 2: Convert to fraction form
    1,338,146/2,006,825.34 = 391,291.64/x
  3. Step 3: Cross multiply
    1,338,146x = 2,006,825.34 × 391,291.64
  4. Step 4: Simplify right side
    1,338,146x = 785,253,978,482.16
  5. Step 5: Solve for x
    x = 785,253,978,482.16/1,338,146
  6. Step 6: Final answer
    x = 586,822.35

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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.