Home / 1,051,265.88-1,577,659.14-420,355.80

Finding the Fourth Proportional to 1,051,265.88, 1,577,659.14 and 420,355.80

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Solution

The fourth proportional to 1,051,265.88, 1,577,659.14 and 420,355.80 is: 630,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,265.88 : 1,577,659.14 = 420,355.80 : x
  2. Step 2: Convert to fraction form
    1,051,265.88/1,577,659.14 = 420,355.80/x
  3. Step 3: Cross multiply
    1,051,265.88x = 1,577,659.14 × 420,355.80
  4. Step 4: Simplify right side
    1,051,265.88x = 663,178,169,922.01
  5. Step 5: Solve for x
    x = 663,178,169,922.01/1,051,265.88
  6. Step 6: Final answer
    x = 630,837.72

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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.