Home / 820,170.70-1,230,256.05-610,218.70

Finding the Fourth Proportional to 820,170.70, 1,230,256.05 and 610,218.70

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Solution

The fourth proportional to 820,170.70, 1,230,256.05 and 610,218.70 is: 915,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,170.70 : 1,230,256.05 = 610,218.70 : x
  2. Step 2: Convert to fraction form
    820,170.70/1,230,256.05 = 610,218.70/x
  3. Step 3: Cross multiply
    820,170.70x = 1,230,256.05 × 610,218.70
  4. Step 4: Simplify right side
    820,170.70x = 750,725,247,498.14
  5. Step 5: Solve for x
    x = 750,725,247,498.14/820,170.70
  6. Step 6: Final answer
    x = 915,328.05

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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.