Home / 990,473.32-1,486,431.42-359,437.96

Finding the Fourth Proportional to 990,473.32, 1,486,431.42 and 359,437.96

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Solution

The fourth proportional to 990,473.32, 1,486,431.42 and 359,437.96 is: 539,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,473.32 : 1,486,431.42 = 359,437.96 : x
  2. Step 2: Convert to fraction form
    990,473.32/1,486,431.42 = 359,437.96/x
  3. Step 3: Cross multiply
    990,473.32x = 1,486,431.42 × 359,437.96
  4. Step 4: Simplify right side
    990,473.32x = 534,279,877,284.70
  5. Step 5: Solve for x
    x = 534,279,877,284.70/990,473.32
  6. Step 6: Final answer
    x = 539,418.75

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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.