Home / 867,111.70-1,300,667.55-493,863.70

Finding the Fourth Proportional to 867,111.70, 1,300,667.55 and 493,863.70

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Solution

The fourth proportional to 867,111.70, 1,300,667.55 and 493,863.70 is: 740,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,111.70 : 1,300,667.55 = 493,863.70 : x
  2. Step 2: Convert to fraction form
    867,111.70/1,300,667.55 = 493,863.70/x
  3. Step 3: Cross multiply
    867,111.70x = 1,300,667.55 × 493,863.70
  4. Step 4: Simplify right side
    867,111.70x = 642,352,488,712.94
  5. Step 5: Solve for x
    x = 642,352,488,712.94/867,111.70
  6. Step 6: Final answer
    x = 740,795.55

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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.