Home / 869,113.30-1,303,669.95-270,069.70

Finding the Fourth Proportional to 869,113.30, 1,303,669.95 and 270,069.70

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Solution

The fourth proportional to 869,113.30, 1,303,669.95 and 270,069.70 is: 405,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,113.30 : 1,303,669.95 = 270,069.70 : x
  2. Step 2: Convert to fraction form
    869,113.30/1,303,669.95 = 270,069.70/x
  3. Step 3: Cross multiply
    869,113.30x = 1,303,669.95 × 270,069.70
  4. Step 4: Simplify right side
    869,113.30x = 352,081,752,295.52
  5. Step 5: Solve for x
    x = 352,081,752,295.52/869,113.30
  6. Step 6: Final answer
    x = 405,104.55

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Double scale
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Similar ratio
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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.