Home / 1,358,987.96-2,038,482.39-399,443.78

Finding the Fourth Proportional to 1,358,987.96, 2,038,482.39 and 399,443.78

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Solution

The fourth proportional to 1,358,987.96, 2,038,482.39 and 399,443.78 is: 599,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,987.96 : 2,038,482.39 = 399,443.78 : x
  2. Step 2: Convert to fraction form
    1,358,987.96/2,038,482.39 = 399,443.78/x
  3. Step 3: Cross multiply
    1,358,987.96x = 2,038,482.39 × 399,443.78
  4. Step 4: Simplify right side
    1,358,987.96x = 814,259,111,325.03
  5. Step 5: Solve for x
    x = 814,259,111,325.03/1,358,987.96
  6. Step 6: Final answer
    x = 599,165.80

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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.