Home / 874,832.79-1,312,249.20-209,984.79

Finding the Fourth Proportional to 874,832.79, 1,312,249.20 and 209,984.79

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Solution

The fourth proportional to 874,832.79, 1,312,249.20 and 209,984.79 is: 314,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,832.79 : 1,312,249.20 = 209,984.79 : x
  2. Step 2: Convert to fraction form
    874,832.79/1,312,249.20 = 209,984.79/x
  3. Step 3: Cross multiply
    874,832.79x = 1,312,249.20 × 209,984.79
  4. Step 4: Simplify right side
    874,832.79x = 275,552,372,689.67
  5. Step 5: Solve for x
    x = 275,552,372,689.67/874,832.79
  6. Step 6: Final answer
    x = 314,977.19

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Double scale
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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.