Home / 855,647.13-1,180,446.98-492,876.69

Finding the Fourth Proportional to 855,647.13, 1,180,446.98 and 492,876.69

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Solution

The fourth proportional to 855,647.13, 1,180,446.98 and 492,876.69 is: 679,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,647.13 : 1,180,446.98 = 492,876.69 : x
  2. Step 2: Convert to fraction form
    855,647.13/1,180,446.98 = 492,876.69/x
  3. Step 3: Cross multiply
    855,647.13x = 1,180,446.98 × 492,876.69
  4. Step 4: Simplify right side
    855,647.13x = 581,814,800,222.90
  5. Step 5: Solve for x
    x = 581,814,800,222.90/855,647.13
  6. Step 6: Final answer
    x = 679,970.49

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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.