Home / 496,547.03-743,823.63-420,319.14

Finding the Fourth Proportional to 496,547.03, 743,823.63 and 420,319.14

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Solution

The fourth proportional to 496,547.03, 743,823.63 and 420,319.14 is: 629,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,547.03 : 743,823.63 = 420,319.14 : x
  2. Step 2: Convert to fraction form
    496,547.03/743,823.63 = 420,319.14/x
  3. Step 3: Cross multiply
    496,547.03x = 743,823.63 × 420,319.14
  4. Step 4: Simplify right side
    496,547.03x = 312,643,308,473.28
  5. Step 5: Solve for x
    x = 312,643,308,473.28/496,547.03
  6. Step 6: Final answer
    x = 629,634.84

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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.