Home / 925,562.80-1,388,518.01-420,159.25

Finding the Fourth Proportional to 925,562.80, 1,388,518.01 and 420,159.25

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Solution

The fourth proportional to 925,562.80, 1,388,518.01 and 420,159.25 is: 630,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,562.80 : 1,388,518.01 = 420,159.25 : x
  2. Step 2: Convert to fraction form
    925,562.80/1,388,518.01 = 420,159.25/x
  3. Step 3: Cross multiply
    925,562.80x = 1,388,518.01 × 420,159.25
  4. Step 4: Simplify right side
    925,562.80x = 583,398,685,693.09
  5. Step 5: Solve for x
    x = 583,398,685,693.09/925,562.80
  6. Step 6: Final answer
    x = 630,317.78

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1.5x scale

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.