Home / 990,519.03-1,486,368.81-359,482.05

Finding the Fourth Proportional to 990,519.03, 1,486,368.81 and 359,482.05

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Solution

The fourth proportional to 990,519.03, 1,486,368.81 and 359,482.05 is: 539,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,519.03 : 1,486,368.81 = 359,482.05 : x
  2. Step 2: Convert to fraction form
    990,519.03/1,486,368.81 = 359,482.05/x
  3. Step 3: Cross multiply
    990,519.03x = 1,486,368.81 × 359,482.05
  4. Step 4: Simplify right side
    990,519.03x = 534,322,906,874.86
  5. Step 5: Solve for x
    x = 534,322,906,874.86/990,519.03
  6. Step 6: Final answer
    x = 539,437.30

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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.