Home / 1,760,769.40-2,642,190.90-638,951.80

Finding the Fourth Proportional to 1,760,769.40, 2,642,190.90 and 638,951.80

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Solution

The fourth proportional to 1,760,769.40, 2,642,190.90 and 638,951.80 is: 958,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,769.40 : 2,642,190.90 = 638,951.80 : x
  2. Step 2: Convert to fraction form
    1,760,769.40/2,642,190.90 = 638,951.80/x
  3. Step 3: Cross multiply
    1,760,769.40x = 2,642,190.90 × 638,951.80
  4. Step 4: Simplify right side
    1,760,769.40x = 1,688,232,631,498.62
  5. Step 5: Solve for x
    x = 1,688,232,631,498.62/1,760,769.40
  6. Step 6: Final answer
    x = 958,803.94

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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.