Home / 1,215,108.10-1,822,662.15-506,520.10

Finding the Fourth Proportional to 1,215,108.10, 1,822,662.15 and 506,520.10

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Solution

The fourth proportional to 1,215,108.10, 1,822,662.15 and 506,520.10 is: 759,780.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,108.10 : 1,822,662.15 = 506,520.10 : x
  2. Step 2: Convert to fraction form
    1,215,108.10/1,822,662.15 = 506,520.10/x
  3. Step 3: Cross multiply
    1,215,108.10x = 1,822,662.15 × 506,520.10
  4. Step 4: Simplify right side
    1,215,108.10x = 923,215,014,484.22
  5. Step 5: Solve for x
    x = 923,215,014,484.22/1,215,108.10
  6. Step 6: Final answer
    x = 759,780.15

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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.