Home / 808,219.70-1,212,329.55-493,291.70

Finding the Fourth Proportional to 808,219.70, 1,212,329.55 and 493,291.70

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Solution

The fourth proportional to 808,219.70, 1,212,329.55 and 493,291.70 is: 739,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,219.70 : 1,212,329.55 = 493,291.70 : x
  2. Step 2: Convert to fraction form
    808,219.70/1,212,329.55 = 493,291.70/x
  3. Step 3: Cross multiply
    808,219.70x = 1,212,329.55 × 493,291.70
  4. Step 4: Simplify right side
    808,219.70x = 598,032,104,679.74
  5. Step 5: Solve for x
    x = 598,032,104,679.74/808,219.70
  6. Step 6: Final answer
    x = 739,937.55

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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.