Home / 666,738.70-1,000,108.05-368,140.30

Finding the Fourth Proportional to 666,738.70, 1,000,108.05 and 368,140.30

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Solution

The fourth proportional to 666,738.70, 1,000,108.05 and 368,140.30 is: 552,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,738.70 : 1,000,108.05 = 368,140.30 : x
  2. Step 2: Convert to fraction form
    666,738.70/1,000,108.05 = 368,140.30/x
  3. Step 3: Cross multiply
    666,738.70x = 1,000,108.05 × 368,140.30
  4. Step 4: Simplify right side
    666,738.70x = 368,180,077,559.42
  5. Step 5: Solve for x
    x = 368,180,077,559.42/666,738.70
  6. Step 6: Final answer
    x = 552,210.45

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Similar ratio
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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.