Home / 1,154,518.89-1,593,238.50-645,221.25

Finding the Fourth Proportional to 1,154,518.89, 1,593,238.50 and 645,221.25

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Solution

The fourth proportional to 1,154,518.89, 1,593,238.50 and 645,221.25 is: 890,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,518.89 : 1,593,238.50 = 645,221.25 : x
  2. Step 2: Convert to fraction form
    1,154,518.89/1,593,238.50 = 645,221.25/x
  3. Step 3: Cross multiply
    1,154,518.89x = 1,593,238.50 × 645,221.25
  4. Step 4: Simplify right side
    1,154,518.89x = 1,027,991,336,518.13
  5. Step 5: Solve for x
    x = 1,027,991,336,518.13/1,154,518.89
  6. Step 6: Final answer
    x = 890,406.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.