Home / 1,108,902.21-1,530,221.61-625,438.53

Finding the Fourth Proportional to 1,108,902.21, 1,530,221.61 and 625,438.53

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Solution

The fourth proportional to 1,108,902.21, 1,530,221.61 and 625,438.53 is: 863,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,902.21 : 1,530,221.61 = 625,438.53 : x
  2. Step 2: Convert to fraction form
    1,108,902.21/1,530,221.61 = 625,438.53/x
  3. Step 3: Cross multiply
    1,108,902.21x = 1,530,221.61 × 625,438.53
  4. Step 4: Simplify right side
    1,108,902.21x = 957,059,554,332.63
  5. Step 5: Solve for x
    x = 957,059,554,332.63/1,108,902.21
  6. Step 6: Final answer
    x = 863,069.39

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Double scale
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1.5x scale

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.